Dale Cregan has been remanded in custody until 24 September after appearing in court charged with four murders, including women police officers Fiona Bone and Nicola Hughes.
One-eyed Cregan, 29, was also charged with the killing of Mark Short and his father, David, killed on 25 May and 10 August 2012, and a further four counts of attempted murder.
Dale Cregan had been questioned for three days.
A post-mortem examination confirmed that PCs Bone and Hughes were shot dead in the attack in Mottram, Tameside, on Tuesday morning.
Earlier Greater Manchester Police Chief Constable Sir Peter Fahy visited the scene.
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Cregan will appear in a Manchester court on Friday.
Mr Cregan was arrested when he walked into Hyde police station a short time after the shooting in Mottram.
He had been on bail following the shooting of Mark Short, 23, at the Cotton Tree pub in Droylsden, on 25 May and was the subject of a huge manhunt after the murder of David Short, 46, Mark Short's father.
On 10 August, David Short was killed at his home in Folkestone Road East, Clayton, after describing his son's killers as cowards. He was found dead after an explosion was heard.
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