- 22 updates
The court heard that police investigations tracked Cregan and his co-accused through their mobile phones.
CCTV was then played to the jury which showed a blue Ford Focus car pulling up outside the Cotton Tree at 11.49pm.
The prosecution say that Cregan, Livesey and Gorman were the men in the car.
The Ford can be seen putting on its hazard lights and pulling up at the side of the pub before a figure runs out of the car and into the building.
Mr Clarke said Raymond Young was in the bar and saw the door open. He saw the gunman enter wearing a black balaclava.
The court heard that after this incident Theresa Atkinson repeatedly tried to contact her son Leon's mobile phone and they spoke the next morning.
The prosecution said that straight after that call Leon Atkinson contacted his two brothers and sent a text message to his "old friend" Dale Cregan, who then began making contact with the other defendants alleged to be involved with the Cotton Tree murder.
The prosecution told the court that the Short family had been involved in along standing feud with members of another local family, the Atkinsons.
The families had reached a state of uneasy peace following their lengthy dispute. However on May 13 2012 an incident began between Theresa Atkinson, the Atkinson family matriarch, and Raymond Young, a member of the Short family.
Theresa Atkinson was drunk and lashed out with a bottle striking Young. It led to him "back handing" Theresa Atkinson. She responded by shouting "I'm gonna get you done by my sons". She said: "You just wait here, you're dead."
The court was told how Mark Short was buried in Droylsden Cemetery. David Short went on daily visits to the cemetery to be at the grave and grieve for his son. He went with his partner Michelle and their grandchildren - this was not a secret in the community
The prosecution said that on the morning of August 10 David Short did not go to the cemetery. He had some errands to do, so murderers went to his home and killed him there.
He was chased through the house and shot many times. He tried to run around the side of the house to escape. His injuries were already unsurvivable and then a grenade was thrown onto him .
Its explosion had devastating consequences for his torso. It is the first time in this country a military grenade has been used in this way .
The court was told that on earlier in year, on May 25, Mark Short was shot in the Cotton Tree pub in east Manchester. He had been enjoying a night out with friends .
His father David was using the toilet otherwise he would have been a target, the court heard. Mark died in his father's arms.
Preston Crown Court has been told by prosecution that on September 18 2012 Dale Cregan called in a spurious burglary at Abbey Gardens in Hattersley, luring two unarmed police officers to investigate.
He lay in wait with a glock firearm, the court heard. Pc Fiona Bone and Pc Nicola Hughes attended. As soon as they arrived Cregan shot the officers repeatedly - until his magazine was empty. As he left the scene he threw a grenade towards his victims.
The prosecution is opening its case against Dale Cregan and nine others at Preston Crown Court. He denies murdering two police officers and two other men.
The family and loved ones of two police officers shot and killed in Manchester arrived at court amid high security.
Pc Nicola Hughes and Pc Fiona Bone were killed in a gun and grenade attack last year.
Dale Cregan is charged with their murder and his trial is due to start at Preston Crown Court today.