Former Navy sailor who hid wife’s body in freezer sentenced for her killing The Associated Press (Getty Images) SAN DIEGO A former U.S. Navy man whom prosecutors said killed his estranged wife and hid her body in a freezer for nearly two years before dumping it into San Diego Bay was sentenced Friday to 16 years to life in prison. Matthew Sullivan, 36, was sentenced in a San Diego courtroom for second-degree murder in the stabbing death of Elizabeth Sullivan. His 32-year-old wife vanished mysteriously in October 2014 from the San Diego home she shared with Sullivan and their two daughters.