
This episode covers the investigation of a serial killer in East St. Louis, Illinois, focusing on the murders of prostitutes and the killer's taunting letter to a journalist.
The case began in 2001 with the discovery of Alisa Greenwade's body, leading to the identification of multiple victims. Forensic evidence, including tire impressions, linked the murders, prompting police to seek FBI assistance.
Journalist Bill Smith received a letter from the killer, claiming responsibility for 17 murders and providing a map to another victim's location. This letter was pivotal in the investigation, revealing the killer's confidence and desire for attention.
Investigators traced the map's download to a computer in Ferguson, leading them to Mori Travis, who had a history of armed robbery. A search of his home uncovered disturbing evidence, including homemade videotapes and plans for further crimes.
Travis was charged with murder but died by suicide in custody before he could provide information on other victims. The episode highlights the challenges faced by law enforcement in solving such cases.
A serial killer's taunting letter leads investigators to Mori Travis, who ultimately dies by suicide before revealing more victims.

This episode stands out for the following:
It's rough when you see somebody you care about and feel helpless.Forensic Files - Season 7, Episode 35 - X Marks the Spot - Full Episode
He is just pure evil.Forensic Files - Season 7, Episode 35 - X Marks the Spot - Full Episode
He took all the answers with him.Forensic Files - Season 7, Episode 35 - X Marks the Spot - Full Episode