Phoenix police had more than one serial killer stalking the Phoenix streets in 2006 as fear gripped the city.

Which countries have the most documented serial killers? The U.S. tops the ranking by a staggering margin with 3,803 identified cases.

Editor’s Note: This story contains discussions of rape or sexual assault that may be disturbing. Reader discretion is advised. If you or someone you know has been sexually assaulted, you can find help ...

The US is No. 1 — in serial killers. With a chilling 3,615 known serial killers to date, America has produced 66.2% of the world’s known serial killers to date — and outpace the next deadliest nations ...

Aileen Wuornos notoriously killed seven men across central Florida between 1989 and 1990, finding herself the center of a high-profile case before she was found guilty and executed in 2002. Before ...

In a 1991 taped call from jail, Aileen Wuornos told girlfriend Tyria Moore she would confess "to keep [her] from getting in trouble" The Netflix documentary Aileen: Queen of the Serial Killers — ...

A criminologist, author and Seattle University professor explains why she found herself conflicted wandering a popular serial ...

Researchers at the University of Bamberg have traced a darkly intricate form of narcissism in sexually motivated male serial killers, reporting that many offenders combine brittle sensitivity with a ...

Hyped by the producers of Weapons comes the ultra-violent thriller Psycho Killer, which was initially pitched as from the same universe as David Fincher’s Seven. USA Today shares a brand new look at ...

Mass murder is sometimes confused with serial murder by the news media and the public in general. Such confusion is not surprising. Up until 1974, criminal justice practitioners used the term mass ...