A serial killer memorabilia expert has purchased the “holy grail” of macabre souvenirs and believes it might offer key clues ...

What about Ted Bundy, John Wayne Gacy and Charles Manson ... their words never spoken and their lives stripped from them by the very well known and recognizable, Jeffrey Dahmer. Society’s infatuation ...

Murderers star in books, podcasts, TV shows about the crimes. But it's their victims, and those who loved them, who deserve the spotlight.

Jeffrey Dahmer, Edmund Kemper, John Wayne Gacy, Gary Ridgway, and Ted Bundy. They found that only Bundy, with a score of 34/40, meets the criteria for psychopathy. Gacy came in second, with 27/40.