Sentence: Whole life order
John Sweeney murdered two girlfriends, Melissa Halstead and Paula Fields, by dismembering their bodies and disposing of them in canals. Halstead disappeared in late April 1990 in Amsterdam, with her remains found in a canal in Rotterdam on May 3, 1990. Fields disappeared on December 15, 2000, in London, with her dismembered remains discovered in Regent's Canal on February 19, 2001. Sweeney had a history of violence, including assaults on Halstead and an attempted murder of Delia Balmer in December 1994, where he attacked her with an axe and knife.