2 Lee Boyd Malvo(Serial killer)
Lee Boyd Malvo was involved in the Beltway sniper attacks of 2002, which killed 10 people and injured three in the Washington Metropolitan Area. He had befriended his accomplice in the act, John Allen Muhammad, as a juvenile. Malvo is currently serving multiple life sentences at a supermax prison.
3 Robert Hansen(Serial Killer)
One of America’s most notorious serial killers, Robert Hansen was called ‘The Butcher Baker’ as he owned a bakery. He is said to have killed seventeen women and raped many others in and around Anchorage, Alaska, during the 1970s and 1980s. Most of his victims were strippers and sex workers. He was sentenced to 461 years in prison in 1984.
4 John Bodkin Adams(Physician, Serial killer)

Not many suspected physician John Bodkin Adams of being a serial killer till it was revealed that his name had appeared in the wills of at least 132 of his patients who had died, while 163 died in coma. Though never convicted of the killings, he faced punishment for forgery.
5 Auto Shankar(Criminal)

6 Enriqueta Marti(Serial Killer)

7 Joel Rifkin(American serial killer)

8 Gary James Lewingdon(Criminal)

9 Luis Garavito(Colombian serial killer)

10 Jerry Brudos(Serial Killer)
Jerry Brudos was an American necrophile and serial killer who killed at least four women between 1968 and 1969 in Oregon, USA. Brudos, who had a fetish for women's shoes, started killing women for their shoes. His life and style of crime inspired a song from the 2003 album Murder Metal, which was recorded by extreme metal band Macabre.
11 Nathaniel Bar-Jonah(Serial killer)

12 Robert Berdella(Serial Killer)
13 Alferd Packer(Criminal, Serial killer)

14 David Owen Brooks(Serial killer)

15 Eugen Weidmann(Serial killer)

16 John Makin(Serial killer)

17 Mohammed Bijeh(Serial killer)

18 Yoshio Kodaira(Serial killer)

19 Mary Clement(Serial killer)

20 Peter Lundin(Serial killer who killed and then dismembered his cohabitant Marianne Pedersen and her two sons)
