Broken police window due to stress not bullet

From WDAF-TV

Police determined Thursday afternoon that the rear window of  police vehicle experienced a stress fracture that caused the window to buckle, and that no shots were fired at the officer.

Police say the veteran officer at first thought he had been fired upon in the area of Prairie Star Parkway and K-7, where he was conducting radar/speed enforcement. The officer was stopped on the side of the highway when the he felt a percussion in his chest and observed the rear window of his vehicle was shattered.