An intense manhunt was underway Monday for a murder suspect who Cleveland police say posted video on Facebook of a fatal shooting and claimed to have committed “multiple other homicides."

Police Chief Calvin Williams said Monday that police officers and the FBI searched dozens of possible locations for suspect Steve Stephens to no avail. No other victims have been found, Williams added, but he warned that Stephens, 37, should be considered armed and dangerous.

"We don't want people to panic," Williams said. "So far there has been one fatality, one homicide. We are still asking Steve to turn himself in, but if he doesn't we will find him."

Williams said detectives spoke with Stephens via cellphone shortly after he shot Robert Godwin Sr., 74., but have had no contact since. He said Stephens had no criminal record.

Williams said friends and family of Stephens have been cooperative. He warned that it was a felony to aid any effort by Stephens to avoid arrest.

"The only for for you to help him is to give is information to bring him in safely," Williams said.

Hours earlier, police tweeted that an aggravated murder warrant had been issued for Stephens and warned residents of Pennsylvania, New York, Indiana and Michigan to be on alert.

Stephens, a 6-foot 1-inch African-American man, said Sunday on Facebook that he had committed an "Easter day slaughter." Stephens was reported to be driving a white, late-model Ford Fusion with temporary Ohio tags. He was last seen wearing a dark blue and gray or black striped polo shirt.

In the video, which appears shaky, Stephens gets out of his car and appears to randomly target Godwin, who was walking on a sidewalk carrying a shopping bag. Stephens says the name of a woman, whom Godwin does not seem to recognize.

“She’s the reason that this is about to happen to you,” Stephens told Godwin before pointing a gun at him. Godwin can be seen shielding his face with the shopping bag.

Cleveland Mayor Frank Jackson publicly urged Stephens to turn himself in to police and not to “do any more harm to anybody.”

Authorities on Sunday said a series of posts on Stephens' Facebook page complained that he had "lost everything" to gambling, NBC News reported. Stephens allegedly wrote: "I killed 12 people today," and said he wouldn't stop until he could speak to his mother and a second woman.

For more information go to http://www.khou.com