On the morning of November 21, 2009, a home invasion in Mount Vernon, Indiana, ended in murder. Jon Wayne David, 43, was asleep in the master bedroom of a Coronado Drive residence with his girlfriend, Lisa Kershaw, when an intruder entered using a key he had kept. The intruder, identified as Lisa’s ex-husband Lee Kershaw, had driven from Mount Vernon, Illinois, to confront them and carried a rifle into the bedroom.

Lee Kershaw opened fire into the bed, hitting Jon David three times — torso, leg, and hand. Emergency responders pronounced David dead at the scene. Lisa Kershaw escaped much of the gunfire by rolling off the bed but was struck afterwards with the rifle stock in the face and abdomen; the couple’s teenage son ran to a neighbor’s house for help. Lee Kershaw fled but later admitted the shooting to his mother; he was charged and ultimately convicted, receiving an aggregate sentence of sixty years.

Did anyone in the area know about prior threats or tensions involving the parties that might shed light on what led to this attack?