(AP/WVLT) — Pennsylvania State Police tweeted that Steve Stephens shot and killed himself after a brief pursuit on Tuesday.

Stephens was the focus of a manhunt. He was accused of posting Facebook footage of himself killing a Cleveland retiree.

Police were unable to determine what set him off. “Only Steve knows that,” Cleveland Police Chief Calvin Williams told the Associated Press as authorities posted a $50,000 reward for Stephens’ capture in the shooting of Robert Godwin Sr., a 74-year-old former foundry worker.

In the video, Stephens blamed a former girlfriend he had lived with, saying he woke up last week and “couldn’t take it anymore.” But in a statement Monday, the woman shed little light on what might have gone wrong and said Stephens was good to her and her children.

As for the shooting victim, Godwin appeared to have been selected at random, gunned down while picking up aluminum cans Sunday afternoon after spending Easter with some of his children.

A manhunt that started in Cleveland’s gritty east side expanded rapidly into a nationwide search for Stephens, a 37-year-old job counselor who worked with teens and young adults, police said.