Police say 37-year-old Steve Stephens killed Robert Godwin in Cleveland, as the grandfather was walking home from an Easter meal.
The man suspected of killing a Cleveland retiree and posting the act on Facebook shot and killed himself after a brief pursuit, Pennsylvania State Police said Tuesday.
Acting on a tip from the McDonald's, Pennsylvania state troopers spotted Stephens leaving the restaurant in Erie and went after him, bumping his auto to try to get it to stop, authorities said. The shooting video was visible on Facebook for almost two hours before it was reported, the company said.
The Godwin family is coming to grips with the cold-blooded slaying, a killing seen by untold numbers of people after his suspected killer posted video of the shooting to Facebook.
Cleveland Police Chief Calvin Williams said the state police got a tip that the vehicle was in a McDonald's parking lot.
It was nearly lunchtime on Tuesday and authorities were in the third day of an intensive manhunt for Stephens, 37. She said state troopers weren't far behind.
"She's the reason why this is about to happen to you", Stephens said.
Before the shooting, he demanded Godwin say Joy Lane, the name of Stephens' ex-girlfriend.
Another daughter, Debbie Godwin, said that's what made her father so special.More news: Aitzaz Ahsan expects no breakthrough in Panama papers verdict
Stephens is believed to have videotaped his actions and published it on Facebook, along with another video threatening to kill others and claiming he had already killed 13 people.
Police said the woman he referred to was in a safe place.
It was not immediately known what Stephens does for the agency, which said it will serve more than 18,000 children and families this year, according to its website.
But the gunman had been a regular at Erie's Presque Isle Downs & Casino, Pennsylvania State Police Lt. Wayne Kline said.
"Police got the decisive tip-off after Stephens had been on the run for almost 48 hours, when a McDonald's employee recognized him at a drive-thru in Pennsylvania shortly after 11:00 am (1500 GMT) and called authorities".
In interviews, some of Godwin's relatives forgave his killer.
"There are no more victims that we know are tied to him", he said. Stephens also went live on Facebook to confess to the murder.
Zuckerberg says Facebook will keep working on ways to prevent such tragedies. A $50,000 reward is being offered for information leading to his capture and prosecution. Detectives spoke with the suspect on Sunday by cellphone and tried to persuade him to surrender, police said.