On this day in 1973, after four days of deliberations, the jury in the trial of suspected serial killer George Stark-- also known as 'the Lawnmower Man' - convicted Stark of multiple counts of first-degree murder and one count of attempted murder for his stabbing of Nevada state trooper Collie Entragian, one of the law enforcement officers involved in his arrest. Stark was later sentenced to death in the gas chamber at the Nevada State Prison in Carson City.