Cleveland police seek man they say broadcast killing on Facebook

(Reuters) - Cleveland police urged a suspect who they said posted video of himself on Facebook killing an elderly man on Sunday to turn himself in to authorities.Officials in the Ohio city said they were looking for Steve Stephens in connection with the one confirmed killing but had found no evidence to support what police said was a claim he made in the video of having killed more than a dozen other people."Everybody is out there looking for Steve," Calvin Williams, the Cleveland police chief,