Babbit then allegedly walked toward officers waving a handgun in the air, according to WPXI.
After officers told him to put it down, he pointed it at one of them, McDonough said.
That's when three officers shot Babbit and hit him multiple times. He was taken to a nearby hospital and pronounced dead a short time later.
Penn Hills School District issued a statement saying Babbit was a teacher in the district.
Our crew at the scene said neighbors reported hearing as many as a dozen gunshots outside. One man described it as a "barrage" of gunfire.
This is the fifth officer-involved shooting in Allegheny County this year, the first one being in May.