Dennis McGrory jailed for life after ‘one-in-a-billion’ DNA hit in oldest double jeopardy case

Dennis McGrory, 75, has been jailed for life with a minimum term of 25 years after being convicted of the rape and murder of teenager Jacqui Montgomery nearly 50 years ago, in the oldest double jeopardy case in England and Wales.

McGrory was 28 when he sexually assaulted, stabbed and strangled 15-year-old Jacqui Montgomery in her home in Islington, north London, in 1975.

The next year, he was tried on a circumstantial case and cleared of murder.

Justice finally caught up with McGrory after swabs from Ms Montgomery’s body produced a “one-in-a-billion” DNA match decades later.

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