Crimes That Shook Britain (2008)

S7E6 John Sweeney

John Sweeney, a man convicted of killing two of his girlfriends, gruesomely dismembered their bodies and discarded them in nearby canals. Sentenced to two life terms, he has been informed that he will spend the rest of his life behind bars. In a chilling revelation, a lead investigator reveals that Sweeney may have concealed hints about his crimes within the abstract art he created. Additionally, it comes to light that five more of his former girlfriends have vanished without a trace.