Criminal Minds

Charles Manson, the Yorkshire Ripper, Aileen Wuornos: take a closer look at some of the world's most prolific serial killers with in-depth profiles of history's most evil men and women. Explore their early lives, their twisted predilections, their horrifying crimes and the chase to bring them to justice, and marvel at how so many of these brutal murderers were, until their crimes came to light, seemingly just another face in the crowd.

Marjorie Diehl-Armstrong, as one judge described her, as "a coldly calculated criminal recidivist and serial killer." She had experienced a lifetime of murder, mayhem, and mental illness. She killed two boyfriends, including one whose body was stuffed in a freezer. And she was convicted in one of the Federal Bureau of Investigation's strangest cases: the Pizza Bomber case, in which a pizza deliveryman died when a bomb locked to his neck exploded after he robbed a bank in 2003 near Erie, Pennsylvania, Diehl-Armstrong's hometown.