FAMILY DISGUST Devastated family of Dean Fitzpatrick say Dave Mahon ‘put us through hell’ as killer gets out of jail 7:00, 29 Jul 2021 THE heartbroken family of Dean Fitzpatrick last night told of their ongoing pain and said: “Dave Mahon has put us through hell.” 2 2 Dean Fitzpatrick was killed after a row at Mahon's flat in 2013 Mahon was freed 24 hours before his official release date for the 23-year-old’s brutal killing. The killer was released after serving just five years of the seven year sentence he received for stabbing the dad of one in an unprovoked attack. 'DESTROYED LIVES' Dean - whose sister Amy, 15, went missing from the Costa del Sol on New Year’s Day 2008, was killed after a row at Mahon’s flat in Northern Cross, north Dublin, on May 25, 2013.