David Martin Long (July 15, 1953 – December 8, 1999) was an American murderer executed by lethal injection in Texas for the stabbing deaths of three women, and later confessed his involvement in seven murders. His case received media attention after he was placed on life support for a drug overdose two days before his scheduled execution. The New York Times said that the medical personnel who treated Long "found themselves in the odd situation of trying to restore to good health a man with only two days left to live."