An "abhorrent" killer rapist who murdered a teenager nearly 50 years ago has been told by a judge he will likely spend the rest of his life behind bars in the oldest double jeopardy case in England and Wales.Dennis McGrory was 28 when he sexually assaulted, stabbed and strangled 15-year-old Jacqui Montgomery during a "horrific, violent and sustained ordeal" at her home in Islington, north London, in 1975.The 75-year-old was cleared of murder the following year on the directions of a judge but wa

An "abhorrent" killer rapist who murdered a teenager nearly 50 years ago has been told by a judge he will likely spend the rest of his life behind bars in the oldest double jeopardy case in England and Wales.Dennis McGrory was 28 when he sexually assaulted, stabbed and strangled 15-year-old Jacqui Montgomery during a "horrific, violent and sustained ordeal" at her home in Islington, north London, in 1975.The 75-year-old was cleared of murder the following year on the directions of a judge but was finally convicted decades later after swabs from Ms Montgomery's body produced a one-in-a-billion DNA match.The victim's family described the decades McGrory spent out of prison as "soul-destroying", with her sister Kathy Montgomery saying they "knew he'd done it from day one".After a 2003 change in the law on double jeopardy, McGrory's case was referred to the Court of Appeal and sent for a fresh trial.On Friday at Huntingdon Crown Court, Mr Justice Bryan jailed him for life with a minimum te