A gunman randomly shot and killed an elderly man on a Cleveland street Sunday afternoon — and streamed the execution on Facebook.

Steve Stephens went on the rampage at around 3 p.m. in the city’s Glenville neighborhood, singling out innocent 74-year-old Robert Goodwin Sr. and murdering him in cold blood while capturing the attack on his cellphone camera, according to police.

“Found me somebody I’m going to kill,” Stephens says in the grisly Facebook video — which the company did not remove until three hours had passed and it had been shared by thousands of users.

“This guy right here — this old dude,” Stephens says.

He is then seen exiting his car and approaching Goodwin, telling the befuddled man to say the name “Joy Lane.” Stephens then points his firearm directly at Goodwin.

“I don’t know nobody by that name,” Goodwin pleads, waving a white plastic bag in a desperate attempt to dissuade the gunman.

Undaunted, Stephens pulls the trigger, striking Goodwin directly in the head.

“That motherf–ker dead because of you, Joy,” Stephens says to the camera as he continues to film the scene, and the slain man’s body is shown lying on the blood-soaked pavement.

A woman by the name of Joy Lane later told CBS News she was Stephens’ longtime girlfriend.

“I am sorry that all of this has happened,” she said. “Steve really is a nice guy.”

In a second video, posted after the murder, Stephens admits that he snapped and “messed up.”

He also claimed to have killed 12 other people, although police could confirm that.

Stephens had been captured as of late Sunday night, and cops were scouring the streets of Cleveland while asking the “armed and dangerous” man to turn himself in.

“It’s senseless,” Police Chief Calvin Williams said. “There was no need for this gentleman to lose his life.”

Facebook released a statement Sunday that said this “kind of content” was strictly forbidden.

“This is a horrific crime and we do not allow this kind of content on Facebook,” the statement read. “We work hard to keep a safe environment on Facebook, and are in touch with law enforcement in emergencies when there are direct threats to physical safety.”

The slain man’s relatives expressed shock and grief while speaking to reporters Sunday night.

“He’s good guy. He’d give you the shirt off his back,” one family member told Cleveland 19 News. “I hate he’s gone. I don’t know what I’m gonna do. It’s not real.”

Facebook Live has been used in the past to broadcast violence.

In July 2016, 32-year-old cafeteria worker Philando Castile was gunned down by police after a minor traffic stop in Minnesota. His girlfriend used Facebook Live to stream the aftermath of the shooting.

With Post Wires