Patrolman William E. Hennessy

Patrolman William E. Hennessy

Chicago Police Department, Illinois

End of Watch Monday, August 23, 1920

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William E. Hennessy

Officer William Hennessy and his partner were assigned to check on the conduct of patrons in a nightclub. When they arrived, an altercation ensued in which Officer Hennessy's partner was attacked by an offender. When Officer Hennessy rushed to his partner's aid, the offender began to fire a gun. Both Officer Hennessy and his partner, Officer James Mulcahy were fatally wounded.

Two men were arrested and held by the coroner. Both men were indicted in August, 1920; On October 20, 1921, both were acquitted.

One of the suspects died in a horse riding accident in 1923 and the other suspect died in 1939.


  • Age Not available
  • Tour Not available
  • Badge 2461

Incident Details

  • Cause Gunfire
  • Weapon Gun; Unknown type
  • Offender Acquitted

Most Recent Reflection

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Officer Hennessy's story was read in Richton Park Police Department's roll call on 7-21-18 to remember and honor him.

Sgt. James Galvan
Richton Park Police (IL)

July 24, 2018

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