John Allen Muhammad and Lee Boyd Malvo carried out the DC Sniper attacks in October 2002, killing 10 people in Maryland, Virginia, and Washington DC over three weeks. Muhammad, an Army veteran, had a criminal history and struggled with custody issues over his children. He met Malvo in Antigua in 1999 and influenced the troubled teenager, teaching him survival skills. They were eventually apprehended sleeping in their car in Maryland and charged for their crimes. Muhammad was sentenced to death and executed in 2009, while Malvo received life in prison without parole.