Amarjeet Sada (India): Amarjeet Sada is one of the youngest documented serial killers in the world. He was only 8 years old when he allegedly murdered three infants.
Mary Bell (United Kingdom): Mary Bell was 11 years old when she was convicted of murdering two young boys in the early 1960s.
Eric Smith (United States): At 13 years old, Eric Smith brutally murdered a 4-year-old boy in New York in 1993. He was convicted of the crime and sentenced to a juvenile detention facility.
Jesse Pomeroy (United States): Jesse Pomeroy was 14 years old when he was convicted of a series of brutal murders and assaults in Massachusetts in the late 1800s.
Joshua Phillips (United States): At 14, Joshua Phillips killed his 8-year-old neighbor in Florida in 1998. His case raised questions about the influence of violent video games on young minds.
Graham Young (United Kingdom): Graham Young, known as the "Teacup Poisoner," was 14 years old when he began poisoning family members and friends with lethal substances in the 1960s.
Willie Bosket (United States): Willie Bosket committed a series of violent crimes, including murder, starting at the age of 15 in the 1970s. His case led to changes in juvenile justice laws in New York.