What can you learn about the psychology of abuse in Gregg Olsen’s If You Tell? Why did Shelly Knotek abuse and kill three people? Media are rife with haunting stories of true crime, but some accounts are more chilling than others. In If You Tell, Gregg Olsen recounts the story of the notorious abuser and murderer Shelly Knotek, who, along with her husband Dave, caused three deaths. Read below for a brief overview of If You Tell.
If You Tell: Gregg Olsen’s Recount of Shelly Knotek’s Abuse










