Sky Crime+1

The murders of 12-year-old Alice, her sister 18-year-old Xing, and their parents Jifeng and Ge at their Northampton home by businessman Anxiang Du.

Fred Dinenage investigates the story of the alleged A6 murderer James Hanratty and explores the arguments for and against his conviction.

When a woman is found dead in a hotel, police realise that an apparent suicide is not what it seems, leading to a manhunt that crosses borders.

Mark Jensen: When Julie Jensen is found dead, police suspect her husband Mark of murder - despite the seemingly happy family life.

A look at the twisted killer who tortured and murdered a man in his home, filming the whole ordeal before torching the flat to cover his tracks.

A profile of the murderer known to some as the Riverside Prostitute Killer, who sits on death row after being convicted for the slaying of 12 women.

A decorated Army Sergeant is gunned down on New Year's Eve. As investigators search for answers, they uncover a devastating betrayal close to home.

More than 50 attacks reveal a disturbing pattern, as the East Area Rapist uses fear and psychological intimidation against his victims. (3 of.