Crimes That Shook Britain - Season 4

Colin Ireland stalked gay men in London in the 1990's, lured them back to his flat and brutally murdered them.

Raoul Moat went on a killing rampage after leaving prison in 2010.

Failed business man Christopher Foster killed his wife and daughter before burning their mansion in Shropshire to the ground in August 2008.

Stephen Lawrence's death at the hands of a racist gang in 1993 sparked a 20 year battle by his family for justice who fought against both an inept police investigation and racism.