38-year-old Sarah Mayhew's torso found in Mitcham river; Gemma Watts, Steven Sansom charged with murder, obstruction.

38-year-old Sarah Mayhew's torso has been found in a river in Mitcham, south London, confirming police suspicions. The remains were discovered by contractors carrying out repairs. Two individuals, Gemma Watts and Steven Sansom, have been charged with her murder and preventing her lawful and decent burial. The investigation began when partial remains were discovered in Croydon on April 2.