An image of the Glock handgun found at the scene of the killings of PCs Fiona Bone and Nicola Hughes in Abbey Gardens in Mottram, Hyde, on September 18 last year has been released by Greater Manchester Police.
Preston Crown Court heard that Dale Cregan, who today confessed to the two murders, fired a total of 32 bullets from the weapon at the unarmed officers after luring them to the address with a bogus 999 call.
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Arthur Simpson-Kent, 48, admitted killing Ms Blake and their sons according to his lawyer.
Two brothers have been arrested on suspicion of murder after their parents were found dead in their own home over the weekend.
The first man to be convicted of murder on the basis of DNA evidence should be moved to an open prison, according to the Parole Board.