Officers Paul Sciullo and Stephen Mayhle were slain last weekend in an alleged ambush by Richard Poplawski, 22, after Poplawski's mother called 911 about her son. She told a call-taker he had guns, but the dispatcher didn't relay that information to the officers, who were caught unaware when Poplawski allegedly stepped out from a room and began shooting at them, the Pittsburgh Tribune-Review reported Tuesday.
Sciullo and Mayhle were slain immediately and another officer, Eric Kelly, was shot to death during a standoff and shootout that followed. Poplawski, who was injured, has been charged with homicide and other counts.
"It was a terrible omission," Allegheny County Chief of Emergency Services Bob Full told the Tribune-Review. "It should have been added to the call. The dispatch should have gone out as a domestic between mother and son and there are guns in the house."
Full would not identify the 911 call-taker other than to say she has been on the job for less than a year, the Pittsburgh Post-Gazette reported.
Notable deaths of 2014 [PHOTOS]