David Francis Bieber (born 3 February 1966), also known under the alias Nathan Wayne Coleman, is an American convicted murderer. A fugitive from the United States, he murdered police constable (PC) Ian Broadhurst and attempted to murder PCs Neil Roper and James Banks on 26 December 2003 in Leeds, sparking a nationwide search before he was captured. He was given a whole life sentence after being found guilty of murder in December 2004 and the trial judge recommended that he should never be released; however, in 2008 this sentence was reduced to a minimum term of 37 years by the court of appeal, after which he could apply for parole.