Facebook Live footage shows homicide suspect Steve Stephens at a gun range (video below).
"[That's how] it looks with the extended clip in there," says Stephens, referring to the gun on the video, before he fires a dozen shots, The Sun reports.
In another part of the video, which has been uploaded to YouTube and is featured below, he points out his favorite gun, what Stephens refers to as a a Glock 30 S.
News of the footage comes after a Facebook video reportedly shows Stephens shooting and killing a 74-year-old man on April 16, reports The Washington Post.
"I’m about to kill this guy right here," Stephens said while approaching Robert Godwin Sr. "He’s an old dude."
Before he shot Godwin to death, Stephens requested the man say "Joy Lane."
"She’s the reason why this is about to happen to you," Stephens explained, referring to a woman he had recently broken up with.
"She put me at my pushing point, man," Stephens said later, laughing and calling it the "Easter Sunday Joy Lane massacre."
Later, Stephens expressed remorse while stating he had already killed 13 people.
"I shamed myself," he said. "I snapped. Dog, I just snapped, dog. I just snapped. I just killed 13 motherf******, man. That’s what I did -- I killed 13 people. And I’m about to keep killing until they catch me, f*** it. … I’m working on 14 as we speak."
Police are now on a multi-state manhunt for Stephens.
"We’re still asking Steve to turn himself in, but if he doesn’t, we’ll find him," Cleveland Police Chief Calvin Williams said. "We’re not going to stop until he’s in custody."
"If there’s somebody that’s helping Steve, or if you think you’re helping Steve, you’re really not," he added. "You’re going to get yourself in trouble, along with him. The only way for you to help him is to give us the information to bring him in safely, peacefully."
Police say he is a black male who stands 6-foot 1-inch and weighs 244-pounds, has a bald head and quite possibly a beard. If he is seen, they advise people to call police immediately and to not approach the man.
Meanwhile, Stephens' former partner, Lane, who is safe, is struggling to process the news.
"We had been in a relationship for several years,” she explained, CBS reports. "I am sorry that all of this has happened. My heart & prayers goes out to the family members of the victim(s). Steve really is a nice guy … he is generous with everyone he knows. He was kind and loving to me and my children. This is a very difficult time for me and my family ... Please respect our privacy at this time."