Cleveland police were still searching Monday for a man who they said filmed himself killing an elderly man, uploaded the video to Facebook and bragged about having committed many other homicides.
The suspect, identified as Steve Stephens, is considered armed and dangerous, police said after the homicide in northeast Cleveland near the Lake Erie shore.
An aggravated murder warrant was issued for Stephens' arrest, and police said early Monday that he may have fled Ohio. Police warned residents of Pennsylvania, New York, Indiana and Michigan to be on the lookout for Stephens. The FBI is providing assistance, a spokeswoman told NBC News.