Jurors in Chicago have convicted a 24-year-old man in the shooting deaths of a Chicago police officer and a former Chicago Housing Authority official.

Timothy Herring was found guilty Wednesday in the deaths of 46-year-old Michael Flisk, a police evidence technician, and 44-year-old Stephen Peters. Prosecutors during the trial described the killings as cold-blooded slayings. They accused Herring of shooting both men in the head once, then shooting them again after he saw one of them move.

Herring was a 19-year-old parolee at the time of the 2010 killings. Prosecutors say he killed Flisk and Peters when he found them at the scene of a burglary he'd committed hours earlier.

Herring's defense attorney argued during proceedings that prosecutors had no substantial physical evidence linking Herring to the crimes.