Accused killer, Paul Groves, had help from a mystery friend in the attack in which he is alleged to have murdered one man and assaulted another.
Chelmsford Crown Court was told this afternoon that Groves, who pleads not guilty murdering William Martindale and assaulting Paul Meeking, arrived at High Meadow Farm, Ongar, where the attack took place with a mystery man.
Prosecutor Simon Spence QC claimed Groves hit Meeking with a pick axe handle, bit him and gouged his eye.
He said it was Meeking who had let Groves and the other man on to the premises and that Meeking who was anticipating trouble and was armed with the pick-axe handle. However, this was later taken off him by Groves and used in the attacks.
Describing what is alleged to have happened next Mr Spence continued : "Groves went straight up to Mr Martindale and said to him 'I'm here now, let's sort it out'.
"What Groves meant was violence because he then immediately punched Mr Martindale four or five times to the right side of his face with sufficient force to knock him out. He slumped forward and was rendered unconscious.
"Mr Meeking then attacked Groves with the pickaxe handle, across his back and shoulders. He and Groves started fighting and he wrested the handle off Mr Meeking.
"He hit him with it several times to his face, his body and knees. With his hand he gouged at his left eye and he bit him to the stomach."
The prosecutor claimed that Groves' friend held Meeking down during the attack to prevent him from defending himself but eventually told Groves : "Leave it Paul. He's had enough."
He continued : "Groves went back to where we say Mr Martindale was still lying unconscious and struck him with the pickaxe handle to the back of the head, at least twice, with heavy blows which were sufficiently powerful not only to break the skin all the way down so the skull was visible but also to fracture the skull over the front righthand side."
Mr Spence continued : "These blows, the prosecution say, killed Mr Martindale."
He claimed that the whole attack lasted just seven minutes.
The hearing suffered a legal hiccup earlier when the initial jury had to be discharged because of a procedural matter and a new jury sworn in this afternoon.
The hearing continues.
