New Castle Police Department, Colorado
End of Watch: Friday, November 25, 1910
Age: 43
Tour of Duty: Not available
Badge Number: Not available
Cause of Death: Gunfire
Date of Incident: November 24, 1910
Weapon Used: Gun; Unknown type
Suspect Info: Shot and killed
Marshal John Rennix was shot and killed while intervening in a dispute between on the city's Main Street.
A saloon owner who was upset that citizens had testified against him in an assault case got drunk and challenged one of the witnesses. As Marshal Rennix attempted to quiet the man down he was shot in the stomach. The man then fled to the second floor or a nearby building and opened fire from a window, killing a citizen. The man then committed suicide as a posse surrounded the building.
Marshal Rennix was taken to a sanitarium in Glenwood Springs where he died the next day. He was survived by his wife and four daughters.