Stepbrother Admits Killing Teen Becky Watts

The stepbrother of Becky Watts has admitted killing her but denied murder in a crime the prosecution claim had a sexual motive. Nathan Matthews, 28 pleaded not guilty to murder at Bristol Crown Court but a jury has been told he admits killing the teenager, saying he tried to kidnap and imprison her before strangling her. Matthews' girlfriend Shauna Hoare, 22, has denied all of the charges against her, including murder.