New hunt at Manson murder ranch

US police are to carry out excavation work at a Californian ranch to search for more possible victims of notorious mass murderer Charles Manson.
They believe more bodies may be buried at the ranch in the Death Valley national park where Manson and his followers hid after the killings.
Manson was convicted in 1969 of killing seven people, including the actress Sharon Tate, who was pregnant.
She was married at the time to the film director, Roman Polanski.