CLEVELAND (AP/WCMH) – A manhunt is underway for a suspect who police say killed a man on the street Sunday and posted it on Facebook.

Law enforcement is searching the Cleveland area and beyond for Steve Stephens, the suspect police say walked up to an elderly man and shot him while on video, said Cleveland Police Chief Calvin Williams.

Cleveland Police have issued a murder warrant for Stephens, saying he is considered armed and dangerous. They are urging Ohio residents to call the police if they see or know anything.

Police say residents of Pennsylvania, New York, Indiana, and Michigan should also be on alert.

The victim has been identified as 74-year-old Robert Goodwin Sr.

Stephens is reportedly driving a white Ford Fusion with Ohio temp tag E363630.

Cleveland Mayor Frank Jackson publicly urged Stephens to turn himself into police and not to “do anymore harm to anybody.”

“Any problems he is having, we can have a conversation,” Jackson said.

In the video, Stephens claimed to have killed more than a dozen other people. Williams said police have not verified that information.

“There are no more victims that we know are tied to him,” he added.

The chief also said they’ve been talking with Stephens’ friends and family.

“What happened today was senseless,” Williams said. Click here to watch the press conference.

Authorities say Stephens broadcast the video live on the social media network Sunday afternoon. It was up for about three hours before it was removed. Stephens Facebook page has also been removed.

“This is a horrific crime and we do not allow this kind of content on Facebook,” said a spokesperson for Facebook. “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.”

Facebook is now saying that a man suspected of fatally shooting another man in Cleveland posted a video of the killing on Facebook, but did not broadcast it live.

In a statement late Sunday night, Facebook said suspect 37-year-old Steve Stephens did go live at one point during the day, but not during the killing.

Police earlier Sunday had said that Stephens had broadcast it on Facebook Live.

Williams said Stephens may be driving a newer model white Ford Fusion, possibly with a temporary license plate. He is described as a black man with a bald head and beard, standing 6 foot 1 inch and weighing 240 pounds. Anyone with information is asked to call 911.

A couple claiming to be victim’s children spoke with CNN affiliate WOIO. They said the man was 78 years old, and a great man.

“We were laughing, he is a good guy,” the man interviewed said. “I mean, he would give shirt off his back. And I’m not just saying that for cameras, as people do…that ain’t right, but I’m telling you the truth. This man right here was a good man and I just hate that he is gone, you know what I mean. I don’t know what I will do, it’s not real! It’s not real.”