Patrolman John J. Mullen

Patrolman John J. Mullen

Chicago Police Department, Illinois

End of Watch Tuesday, January 4, 1921

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John J. Mullen

Patrolman John J. Mullen, of the 29th Precinct, was fatally shot at 12:57 a.m. on January 3rd, dying at 3:50 a.m., the next day at the Lincoln Gardens, Wells Street and Lincoln Avenue, by a man he tried to arrest.

Officer Mullen responded to a disturbance of an intoxicated man in a cafe. Officer Mullen placed one offender under arrest for threatening a patron with a gun. The second offender approached Officer Mullen from behind and shot him.

All assailants were indicted by the Grand Jury. On March 26, 1921, two were acquitted by the judge. On March 26, 1921, the shooter was sentenced to life imprisonment at Joliet Penitentiary.

The shooters conviction was based on evidence provided by another man. The killer's friends vowed they would get him. On March 19, 1923, his mutilated body, with hands cut off, was found buried in the snow near Geneva.

Patrolman Mullen, a WWI Army veteran, was survived by a wife and child and is buried at Mount Carmel Cemetery.


  • Age 25
  • Tour 3 years
  • Badge 4275
  • Military Veteran

Incident Details

  • Cause Gunfire
  • Incident Date Monday, January 3, 1921
  • Weapon Gun; Unknown type
  • Offender Sentenced to life at Joliet Penitentiary

arrest attempt, disorderly

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Patrolman Mullen,
On today, the 100th anniversary of your death I would just like to say thank you for your service and sacrifice-not just for your Community but for our Country as well when you served with the U.S. Army during WW I. And to your Family and loved ones, I wish to extend my deepest sympathy.


United States Border Patrol

January 4, 2021

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