A serial killer is typically a person who murders three or more people, with the murders taking place over more than a month and including a significant period of time between them. The Federal Bureau of Investigation (FBI) defines serial killing as "a series of two or more murders, committed as separate events, usually, but not always, by one offender acting alone".
Identified serial killers
Is there a serial killer in Virginia? - Kathy Reichs and Kimberly Priest Johnson discuss DNA details of various crimes in Va. and a serial killer possibility. More from CNN at http://www.cnn.com/ To ...
Unidentified serial killers
This is a list of unidentified serial killers who committed crimes within the United States.
See also
- List of murdered American children
- List of serial killers by country
- Mass shootings in the United States