Kansas City Police Department, Missouri
End of Watch: Wednesday, December 4, 1929
Age: 28
Tour of Duty: 6 years
Badge Number: Not available
Cause of Death: Gunfire
Date of Incident: December 2, 1929
Weapon Used: Handgun; Pistol
Suspect Info: Executed in 1932
Patrolman Dingman was shot by three men he attempted to stop. Patrolman Dingman had been on patrol at 31st Street and Jackson Avenue, when he pulled up next to a car carrying three men. He attempted to approach them, and two of the suspects opened fire. Patrolman Dingman was mortally wounded, and died two days later.
The three men were later arrested, and it was learned that they had been released from jail that October and were known gangsters. The three confessed to at least fifteen recent crimes, including the murder of Patrolman Dingman. One of the three was hung for Patrolman Dingman's murder on January 15, 1932.
Patrolman Dingman had been with the agency for six years and had served with the National Guard for four years. He was survived by his wife.