The families of two murdered policewomen sobbed in court as they listened to details of the "bloody conclusion" to Dale Cregan's alleged string of attacks.
Cregan, 29, told police, "I'll be waiting", as he lured the unarmed and unsuspecting officers with a bogus 999 call, Preston Crown Court was told.
When they arrived he opened fire with a handgun, pulling the trigger 32 times in a matter of seconds before leaving his "calling card" by throwing a military fragmentation grenade as his victims lay bleeding on the floor, it is claimed.
But he was branded a "coward" by investigating officers as the court heard how Pc Fiona Bone, 32, fell in a hail of 24 bullets when she drew her Taser and tried to respond. He is also accused of blasting Pc Nicola Hughes, 23, in the head three times as she lay paralysed on the floor.
After the attack "calm and casual" Cregan, who had groomed himself with new clothes and a haircut on his last night of freedom, handed himself in to police saying: "I'm wanted by the police and I've just done two coppers," the jury heard.
Cregan denies murdering the officers and also the murder of father and son David and Mark Short.
The court heard the night before the attack on the officers Cregan, had gone to the home of his barber in Abbey Gardens in Mottram, Hyde. They knew Cregan but were "terrified" by his presence, Nicholas Clarke QC said.
The following morning at 10.11am on September 18, Cregan made a 999 call, played to the jury, who heard the defendant's recognisable Manchester accent, purporting to be "Adam Gartree" and reported that somebody had thrown a "big concrete slab" through his back window.
The officers arrived at the house at 10.52am with Cregan armed, ready and waiting, the jury were told.
Cregan discharged a total of 32 bullets at the two unarmed police officers, the court was told. The hearing has been adjourned until Monday morning.