The man who murdered Rhys Jones has been put into isolation in prison after stabbing Jake Fahri, who killed altar boy Jimmy Mizen in 2008.
Sean Mercer, 18, shot 11-year-old Rhys Jones, in 2007 as Jones was walking home from football practice.
Fahri killed school boy Jimmy Mizen during a fight in which Mizen’s neck artery was cut by a glass dish in a bakery.
Both cases gained national attention and were among a string of high profile murders of young people by young people in 2007-08.
In an incident at Moorland prison in Doncaster on Monday, Mercer attacked and stabbed Fahri, reportedly with a pair of sharpened tweezers, as he was held down by a third prisoner.
Following the attack Fahri was taken to hospital for treatment while Mercer was put in isolation.






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