Patrolman William P. Bosak

Patrolman William P. Bosak

Chicago Police Department, Illinois

End of Watch Saturday, March 3, 1979

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William P. Bosak

Patrolman William P. Bosak and Patrolman Roger Van Schaik were shot killed in an ambush attack near the intersection of 115th Street and May Street.

They were returning to their squad car when a motorist traveling in the opposite direction stopped alongside them and opened fire with an M-1 rifle without warning.

The killer was apprehended, convicted of the murder, and sentenced to death. On January 10th, 2003, outgoing Governor George Ryan commuted the death sentences of all 167 Illinois death-row inmates, including the death sentence of Officer Bosak's murderer, as his last act in office.


  • Age 34
  • Tour Not available
  • Badge 3319

Incident Details

  • Cause Gunfire
  • Weapon Rifle; M-1
  • Offender Death sentence commuted


Most Recent Reflection

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Officer Bosack, I was reminded of you today as the Chicago news stations carried a story about the CPD horse, Bosack, named in your honor. I also remembered our days at Fenger High School. I was very saddened on the day your watch ended. You left behind many people who loved you and will never forget you. Like so many brave men and women of the CPD you died serving others and will forever be remembered as the hero you were. RIP Bill.

Michael E. Fryzel
Fenger High School Classmate

November 11, 2021

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