When there are no new leads in an investigation, a case turns cold. But victims' families never stop looking for justice. The truth can still surface. Part of True Crime on Channel 4.

Trevor McDonald visits US jails holding the most notorious female criminals - Indiana Women's Prison and Rockville Correctional Facility

American documentary series about cult leader David Koresh in the years leading up to and including the 51-day stand-off with the FBI that ended on Mount Carmel, Texas.

True crime series narrated by Helen Hunt that investigates cases dealing with the most common form of murder - when a married person kills a partner.

Riveting, intimate documentary series following Gypsy-Rose Blanchard as she's released from prison after serving eight years for the second-degree murder of her mum. Part of True Crime on Channel 4.

Exclusive interviews with Erik Menendez, one of the brothers who, in 1989, killed their parents, leading to one of the most publicised trials in US history.

British psychological crime drama following a former police officer (Anne-Marie Duff) who is dragged back into the world of law enforcement by the discovery of four bodies linked to her old cases.

True crime series. Emilia Fox and leading criminologist Professor David Wilson investigate famous unsolved murder cases, looking for new leads that the original investigations may have missed.