Constable John Mancos

Constable John Mancos

Pennsylvania State Constable - Allegheny County, Pennsylvania

End of Watch Wednesday, July 22, 1925

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John Mancos

Constable John Mancos was stabbed to death while attempting to serve a warrant on a woman at 1050 Garfield Street in Braddock Park.

The woman's husband answered the door when Constable Mancos knocked on it and without warning started slashing at him. Constable Mancos was knocked to the ground and stabbed in the abdomen and the back multiple times before he was able to draw his service weapon. He was able to shoot the subject in the leg, wounding him. The man ran to a nearby home where he was arrested a short time later.

An unarmed friend of Constable Mancos who had accompanied him to serve the warrant was also injured when he attempted to disarm the subject as he stabbed the constable.

Constable Mancos was survived by his wife.


  • Age 33
  • Tour 1 year
  • Badge Not available

Incident Details

  • Cause Stabbed
  • Weapon Edged weapon; Knife
  • Offender Shot and wounded

Most Recent Reflection

View all 3 Reflections

Your heroism and service is honored today, the 89th anniversary year of your death. Your memory lives and you continue to inspire. Thank you for your service. My cherished son Larry Lasater was a fellow police officer who was murdered in the line of duty on April 24, 2005 while serving as a Pittsburg, CA police officer.

Time never diminishes respect. Your memory will always be honored and revered.

Rest In Peace.

Phyllis Lasater Loya
mom of fallen officer Larry Lasater

December 10, 2014

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