Chicago Police Officer Joseph Mertl shot and killed his wife Evelyn, then went to a friend's house to drop off their infant son, saying he was going home to kill himself. His stepson reported seeing Officer Mertl go up a stairway in their home, put the gun to his head, and fire one shot. Evelyn had recently filed for a divorce. The news report I saw (in Jet Magazine) was written while Officer Mertl was still alive, but critically wounded and hospitalized. I did find an obituary image for a "CPD" Joseph Mertl in Chicago, printed July 7th 1976. Date of Evelyn's death: June 17 1976.
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