Facebook homicide video

Zuckerberg addresses 'Facebook killing'

"Our hearts go out to the family and friends of Robert Godwin Sr," said Mark Zuckerberg near the start of Facebook's annual F8 developers conference.

His social network had been criticised over the amount of time it had taken to take the clip offline.

About an hour before the event got underway, police had revealed that the murder suspect had killed himself.

Steve Stephens had been the subject of a national manhunt.

Suspect in Facebook homicide sought

We need to bring this to a conclusion -- today," Cleveland Police Chief Calvin Williams told reporters during a search for the suspect, identified as Steve Stephens.

"There is no need for any further bloodshed in this incident tonight," Williams added.

Police said late Sunday that Stephens "may be out of state at this time," and authorities called on residents of Pennsylvania, New York, Indiana and Michigan "to be on alert."