In July 2001 Sampson carjacked and murdered three people: Philip McCloskey (aged 69 of Taunton, Massachusetts), Jonathan Rizzo (aged 19 of Kingston, Massachusetts), and Robert Whitney (aged 58 of Concord, New Hampshire[https://whdh.com/news/federal-judge-sentences-murderer-gary-lee-sampson-to-death/]. The murders took place over the course of a week. Sampson told police that, after McCloskey picked him up hitchhiking, he forced him at knifepoint to drive to a secluded area, where he tied him up with his belt and stabbed him 24 times. He also forced Rizzo to a secluded area, tied him to a tree, gagged him, and killed him.