
An in-depth look at some of the world's most dangerous murderers.

Mary McLaughlin's unsolved murder was finally cracked after 36 years, exposing killer Graham McGill.

Dennis Rader, known to the world as the BTK Killer, killed ten people, including young children, between 1974 and 1991 in Wichita, Kansas.

A killer who goaded police and media during his spree, Heriberto Seda claimed to kill based on his victims' star signs.

Jailed for the dreadful murder of a children's author, Ian Stewart receives a second conviction for the death of his wife, six years earlier.