In this episode of Rotten Mango, the hosts examine the case of 17-year-old Mackenzie Shirilla, who killed her boyfriend Dom and friend Davion when she drove into a brick building at over 90 mph. Drawing from thousands of text messages, social media posts, and investigative records, the episode explores Mackenzie's contradictory behavior before the crash—including documented bullying, reckless driving while filming herself, and a public persona that clashed with her private actions.
The episode presents the evidence investigators collected, including Mackenzie's suspicious hospital behavior and claims of amnesia, and examines competing theories about whether the crash was accidental, premeditated, or the result of sudden rage. Central to the analysis is the volatile relationship between Mackenzie and Dom, documented through over 92,000 text messages that reveal patterns of emotional abuse, financial dependency, and escalating conflict in the days leading up to the fatal crash.

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Mackenzie's pre-crash life reveals a troubling pattern of contradictions and harmful behavior. Her online persona as a caring, body-positive influencer conflicted sharply with documented bullying and cruelty.
Friends recall vastly different versions of Mackenzie—some saw her as loyal and supportive, while others experienced her vindictiveness firsthand. She maintained a "burn book" with 48 names and derogatory labels, and privately sent messages calling peers "pizza face" and "ugly as fuck," despite publicly promoting body positivity. Her obsession with social status manifested in anger over not winning "best dressed" at school and hostile posts about the actual winner.
Mackenzie's behavior extended beyond verbal abuse. Witnesses and disciplinary records document cyberbullying, including Airdropping racist memes to Black students and threatening violence over trivial disputes. Before the crash, a girl named Kay ended up in a medically induced coma after falling down stairs at a party, with rumors suggesting Mackenzie may have pushed her. Mackenzie's defensive online response—telling critics to "go fuck yourself and kill yourself, bitch"—reinforced perceptions of her volatility.
Mackenzie's social media was saturated with illegal and dangerous content. She repeatedly posted videos smoking marijuana while driving, using handles like "baby Kush" and filming herself at ages 16 and 17. Police noted her "never ending obsession with documenting herself getting high." She regularly recorded herself driving while taking selfies, filming TikToks, sitting cross-legged with feet off the pedals, or using cruise control to focus on choreography. Her posts boasted, "I'm just one of those girls that can do a lot of drugs and not die," with seemingly little parental intervention despite her parents following her public accounts.
Mackenzie's lifestyle was riddled with hypocrisy. She pursued an obsessive organic diet for "spiritual" reasons while constantly smoking marijuana, denounced racism online while using slurs privately, and mocked others as "brokies" while buying counterfeit designer goods and shoplifting. At school, she was repeatedly defiant, calling teachers "fucking bitch," locking herself in bathrooms to avoid the office, and wearing inappropriate attire like low-waisted Juicy Couture tracksuits that she proudly displayed on social media. Teachers pleaded with administrators for help removing her from classrooms due to constant verbal attacks and refusal to comply.
The investigation collected massive digital evidence: over 4,000 videos, 4,896 photos, and 31,000 pages of text messages between Mackenzie and her boyfriend Dom—totaling about 92,892 messages. Police also obtained nearly 800 texts with her father, thousands more with friends, and extensive Snapchat, TikTok, and Instagram data.
While hospitalized after the crash, Mackenzie exhibited suspicious behavior despite claiming amnesia. She posted Snapchat stories and responded to a modeling agency within days of the fatal event. When a detective arrived, she argued with her parents to leave the room and insisted on privacy. A key incident involved Mackenzie rapidly speaking an unidentifiable language to her mother. An officer consulted university professors who determined it wasn't a foreign language but had American English cadence. Her father later explained it was "carny talk," an argot used by carnival workers. Prosecutors suspect Mackenzie suggested they claim she suffered a seizure to explain the crash.
Mackenzie claimed post-traumatic amnesia, stating she remembered leaving home but nothing until waking in the hospital—a claim she maintained four years later. Davion's father found the timing suspicious, noting it prevented her from aiding the investigation as the sole survivor. While medically possible, authorities questioned the convenience, given she killed both Dom and Davion by driving straight into a brick wall without braking. Three months after the crash, Mackenzie posted a controversial Halloween photo shoot with corpse-like makeup, drawing criticism for insensitivity and raising doubts about her trauma claims.
The fatal crash has generated several theories about Mackenzie's motivations and state of mind.
A minority believes the crash was accidental, citing possible medical emergencies or car malfunction, though police ruled out mechanical failure. Many observers support a premeditated murder theory, noting Mackenzie drove that road multiple times prior—interpreted by some as reconnaissance—and timed the crash just before her 18th birthday when Dom planned to break up with her. Another widely supported theory suggests rage-induced murder: Mackenzie and Dom argued in the car, and overwhelmed by emotion, she accelerated to over 90 mph and slammed into a brick building, disregarding Davion in the back seat. Proponents cite her volatile personality and lack of empathy as supporting evidence.
Debate continues about whether Mackenzie expected to survive. Some believe her reckless lifestyle and sense of invincibility meant she didn't fully consider risks to her own life. Forensic details add ambiguity: Mackenzie's head was found under the dashboard, interpreted variously as evidence she fainted, that the airbag pushed her there, or that she intentionally shielded her face from airbag impact out of narcissistic concern for her appearance.
The relationship between Mackenzie and Dom was marked by severe power imbalance and escalating conflict that became central to understanding the crash.
Dom, 20 and living independently, acted as primary provider for Mackenzie, still 17 and in high school. She had moved into his house and didn't work. A friend reports Dom supplied all her needs—groceries, clothing, and marijuana—which she expected him to provide regularly. Mackenzie leveraged this dependency with threats and ultimatums, frequently demanding items and using aggressive language to control Dom's actions, suggesting emotional and psychological abuse.
A massive archive of 31,000 pages containing over 92,000 text messages documents their constant fights from 2020 through July 2022, including exchanges just days before the crash. Mackenzie's messages show patterns of anger, insults, and threats, such as "I'm so fucking fed up with this shit I'm giving you one more chance to give me weed or there's gonna be issues." An entire podcast episode is devoted to analyzing these texts, tracing the evolving intensity in their relationship and searching for potential motives or warning signs. The collected evidence reveals Mackenzie's verbal abuse, emotional dysregulation, and apparent lack of empathy, suggesting a capability for violence that made the subsequent fatal incident disturbingly plausible, particularly if Dom's plans to end the relationship served as a trigger.
1-Page Summary
Mackenzie's life before the crash is marked by contradictions in personality, reckless conduct, and a pattern of abrasive and harmful interactions. Her self-image as a caring, body-positive influencer often stands in sharp contrast to her documented mean-spirited and hypocritical behavior.
Friends and peers recall vastly different versions of Mackenzie. Some describe her as fiercely loyal to bullied peers, while others depict a vindictive teenager maintaining a "burn book" listing 48 people against whom she seeks revenge, with descriptors like "transgender" and "the Fatty." For some, she presents herself as a supportive "girl's girl," sharing affirmations about every woman's body being beautiful and defending herself as a target of TikTok "haters." To others, she is dismissive and cruel, sending voice notes calling peers "pizza face," "ugly as fuck," and encouraging them to "get the fuck out of my comments." In private, her messages flip between affirmations of body positivity and overt body-shaming, such as DMing friends that "every woman is a fucking goddess" but calling others "fat bitches" elsewhere.
Mackenzie becomes preoccupied with image-based recognition, such as obsessing over not winning the "best dressed" superlative at school and venting hostility toward the actual winner on social media. Her social media persona as a fashion influencer—complete with attempts to reach Vogue, Balenciaga, and various celebrities—clashes with reports of spiteful, bullying messages and a mean-spirited rivalry at school.
Mackenzie's online presence is saturated with content featuring herself engaging in illegal and hazardous conduct. She repeatedly posts videos and TikToks of herself smoking marijuana, typically with her signature pink steering wheel cover and flashy oversized sunglasses, and even uses handles and captions referencing weed ("baby Kush," "baby cushy"). Police and friends note her "never ending obsession with documenting herself getting high,” posting bong hits and videos of herself smoking at ages 16 and 17.
She records and broadcasts herself driving under the influence, taking selfies, filming "ramp" videos, lip-syncing, and showing off nails and lashes—often with her feet nowhere near the pedals, sitting cross-legged, or using cruise control so she can focus on choreography or filming. Her social media is filled with scenes of inattentive, reckless driving done explicitly for TikTok and Snapchat. The attitude is further amplified with public posts claiming, "I'm just one of those girls that can do a lot of drugs and not die," sometimes accompanied by an alarming lack of parental response, even though her parents reportedly followed her public social media posts.
Despite public endorsements of body inclusivity ("thank you IAMGIA for being weight inclusive," "every woman's body is beautiful"), Mackenzie routinely body-shames girls both privately and in TikToks, calling others "fatties," using insulting language about their appearance, or mocking classmates for skin problems. She loudly denounces racism online while using racial slurs and mocking Asian people in private communications.
Her lifestyle is similarly contradictory. Mackenzie pursues an obsessive organic, gluten-free, non-GMO diet for "spiritual" reasons, yet incessantly smokes marijuana, even to the point of coughing up black residue. She derides fast food, gets upset when friends eat her "natural all-organic popcorn," and refuses non-natural supplements—while boasting about drug use and unlawful behavior.
Flaunting luxury brands is another cornerstone of her online image; she mocks others as "brokies" yet sources counterfeit designer goods from DHgate and shares dupe links while privately admitting to shoplifting inexpensive earrings from Kohl's. Publicly, she claims to despise designer items yet contradicts herself in both consumption and self-presentation.
Mackenzie displays a track record of aggressive conduct and psychological abuse. Witnesses and disciplinary records show instances of cyberbullying, such as Airdropping racist memes—including to Black students—leaving derogatory online comments about classmates’ appearances, or publicly shaming peers in Instagram captions. She threatens violence over trivial disputes, as in the case of threatening to "beat up" a classmate over a Dorito chip, and posts humiliating content about classmates, such as spotlighting and mocking "big foreheads."
At a party before the crash, a girl named Kay ended up in a medically induced coma after falling down stairs. Rumors swirled about Mackenzie intentionally pushing her, fueled both by students and statements from Dom's mother, though some claimed it may have been accidental jostling or play fighting. Mackenzie defensively lashed out online, blaming others, suggesting underage partygoers were responsible, and telling critics to "go fuck yourself and kill yourself, bitch." The serious nature of these allegations and Mackenzie’s harsh, unfiltered public responses reinforced perceptions of her as volatile and remorseless.
Online, she participated in TikTok trends that glorified "psycho" behaviors—like contemp ...
Mackenzie's Character, Personality, and Reckless Pre-crash Behavior
The investigation into Mackenzie’s fatal car crash involved the collection of an extensive volume of digital evidence. Police acquired over 4,000 separate videos, 4,896 photos, and a staggering 31,000 pages of text messages exchanged between Mackenzie and her boyfriend, Dom—totaling about 92,892 messages. There were also close to 800 text messages between Mackenzie and her father, Steve Chavilla, nearly 2,000 messages with close friends, and 2,000 pages of Instagram direct messages with various individuals. Authorities received massive data folders containing Mackenzie’s Snapchat content, including personal photos, videos, and audio messages, along with TikTok and Instagram data.
Additionally, police obtained 97 jail call recordings, 551 pages of official police documents, and footage from 39 body and dash cameras. For a comprehensive analysis, Rotten Mango's team manually read the entire 31,000-page text message document, illustrating the enormity of the data reviewed in this case.
While hospitalized after the crash, Mackenzie exhibited suspicious behaviors that drew further scrutiny. Despite claiming amnesia and being in casts and a neck brace, she didn’t hesitate to post Snapchat stories and respond to a modeling agency on Instagram, only a day or two after the fatal event. Visitors, including her parents and two close friends, were present in her hospital room when a detective arrived; after brief introductions, most left, leaving Mackenzie, her parents, and the officer.
Mackenzie was observed arguing and yelling at her parents to leave the room, requesting moments alone. She insisted on privacy even when an officer was present for official business. Her behavior extended to seeking influencer and modeling opportunities soon after the crash. Notably, prosecutors grew suspicious when Mackenzie appeared to use coded language with her mother, potentially to fabricate an explanation for the crash.
A key incident in the hospital involved Mackenzie rapidly speaking an unidentifiable language to her mother. The officer couldn’t place the language and later consulted university language professors, who found that the speech did not match any foreign language and featured a cadence characteristic of American English. Mackenzie's father, Steve, later explained it was “carny talk,” an argot used by carnival workers, similar to but faster than Pig Latin. Prosecutors decoded the message and suspect Mackenzie suggested they tell authorities she suffered a seizure to explain the crash—a version disputed by her father but considered by investigators as potential evidence of intent to coordinate a story.
Mackenzie claimed post-traumatic amnesia, stating she remembered leaving home and turning onto a street, but recalled nothing until she awoke in the hospital. Four years later, she continued to insist she had no memory of the crash details. In hospital and subsequent voice memos, she repeatedly asserted her inability to recall what happened, describing a “black hole” in her memory surrounding the crash.
Davion’s father found the amnesia’s timing suspicious, noting it lasted just long enough to prevent Mackenzie from aiding the police inv ...
Investigation Evidence From Foia Files and Suspicious Indicators
The fatal car crash involving Mackenzie, her boyfriend Dom, and their friend Davion has generated several popular theories about its cause. These theories reflect ongoing debate regarding Mackenzie’s motivations and state of mind at the time of the incident, as well as the possible role of chance or malice.
A small group maintains that the crash was accidental. These individuals believe that what happened in the car could be explained by factors beyond Mackenzie’s control. They suggest that she may have suffered a medical emergency, such as fainting or passing out at the wheel, causing her to lose control of the car. Others propose a car malfunction as the cause, even though police have officially ruled out mechanical failure. This group questions whether mechanical issues were thoroughly investigated and emphasizes that medical emergencies can lead to sudden loss of control in otherwise healthy drivers.
A larger portion of the public subscribes to the idea that Mackenzie planned the crash with intent to kill Dom, with Davion’s death being collateral damage.
Many believe Mackenzie orchestrated the entire incident, possibly scouting the crash site beforehand. Evidence shows Mackenzie drove on that particular road multiple times prior, which some observers interpret as reconnaissance missions, while others argue the road was simply a known shortcut. Allegations suggest Mackenzie timed the crash deliberately just before her 18th birthday, motivated by the imminent breakup with Dom. These supporters see the element of timing, as well as her awareness of Dom’s plans, as strong indicators of premeditation.
Another widely supported theory posits that although Mackenzie may not have planned the incident days in advance, she did act with murderous intent in the moment. This group believes that Mackenzie and Dom got into a heated argument in the car. Overwhelmed by rage, Mackenzie accelerated to over 90 miles per hour and slammed into a brick building. According to this perspective, Mackenzie was singularly focused on her own emotional response to the situation, failing to consider or care about Davion’s presence in the back seat. Proponents of this theory cite evidence from Mackenzie’s volat ...
Competing Theories About the Crash's Causation
The relationship between Mackenzie and Dom is marked by a significant power imbalance, frequent volatility, and escalating emotional conflict that ultimately becomes central to understanding the events surrounding a fatal crash.
Dom, at age 20, acts as the primary provider for his girlfriend, Mackenzie, who is about to turn 18 but is still in high school. Having graduated, Dom lives independently in his own house next door to his mother, who regularly cooks dinner for him. Mackenzie, at just 17, has at some point fully moved into Dom’s house and does not hold a job. A friend reports that Dom is responsible for all of Mackenzie’s material needs, consistently supplying her with groceries, clothing, and anything else she wants—including marijuana, which she expects him to provide regularly.
Their relationship is serious by the standards of their age, defined by Dom’s role as provider and Mackenzie’s dependence. Notably, Mackenzie leverages this dependency, frequently making direct demands for items such as weed and using threats or ultimatums to control Dom’s actions. This pattern of behavior suggests a form of emotional and possibly psychological abuse, with Mackenzie manipulating Dom to ensure her needs are continually met.
Mackenzie’s communication with Dom is often characterized by anger, insults, and the use of slurs. Text records show Mackenzie escalating disagreements into significant arguments and using accusatory language to dominate or manipulate Dom. For instance, in her messages, Mackenzie commands Dom to “enclose your mouth” and complains, “maybe if you listened for one second enclosed,” indicating an aggressive and hostile manner of interacting. She frequently expresses her frustration in explicit terms, such as, “I’m so fucking fed up with this shit I’m giving you one more chance to give me weed or there’s gonna be issues.” This pattern of verbal aggression and the use of threats underscores behaviors that suggest abuse, as Mackenzie seeks to control Dom’s behavior and secure the material items she demands.
A massive digital archive—31,000 pages with over 92,000 text messages—documents the ongoing relationship between Mackenzie and Dom from 2020 through July 2022. These messages provide a detailed view of their constant fights, daily communications, and relationship dynamics, including exchanges just days before the fatal incident. The messages serve as a crucial resource for reconstructing their interactions and emotional states, particularly leading up to the crash.
An entire podcast episode (part 4) is devoted to analyzing these texts. The series promises a comprehensive review of nearly ev ...
Mackenzie and Dom's Relationship Dynamics and Volatile Fights
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