A man who took a confronting video of the aftermath of a fatal fight at the Weston Creek Skate Park has told the ACT Supreme Court he believed the victim was unconscious.
The man was giving evidence in the trial of a teenager who is charged with killing an 18-year-old by stabbing him six times during an organised fight at the skate park.
The teenager has pleaded guilty to stabbing the victim's 16-year-old cousin, who survived his injuries, but has denied he murdered anyone.
On Thursday, the court viewed disturbing footage of the aftermath of the fight, filmed by one of the men in attendance.
Some of the jurors in the case shielded their eyes after being shown the video more than once.
The man admitted to making the video, saying he did it because he was drunk, and later said that he had told police he was so intoxicated he was not sure if he had blacked out.
"Was the video some kind of trophy?" defence lawyer David Barrow asked him.
"Not at all. It was just a drunken mistake," the man replied.
The man told the jury he could not recall sharing the video and deleted it the next morning.
The man also admitted to taking the drugs ice and LSD before going to the skate park.
The court heard he had been in one of three cars that descended on the park for an organised fight, sparked by an aggressive exchange on Snapchat.
He told the court he had gone to the fight after a friend invited him to join in, saying he did not even know where they were going.
He said when he got out of the car his friend was already fighting with the victim.
The court heard he had gone to help, punching the victim several times in the stomach but said he did not remember the man hitting him back.
He also told the court how he had seen one of the boys in the victim's car with what looked like a machete.
The man also admitted hitting the victim's car several times with a pickaxe.
He told the court he saw the victim on the ground but did not know how he got there.
He denied stabbing the man or seeing anyone else stab him before he made the video as the group was leaving.
Two involved in fight returned to the scene, bought fast food
The court also heard that two of the people involved in the fatal fight later returned to the scene, buying a meal from a fast food outlet across the road and witnessing police begin their investigations.
A separate witness, called earlier in the day, told the court that he had pulled the victim from the car and started to bash him after he arrived at the park with a group of friends.
He told the court that he had gone to the scene in his Ute, with three others, but another person had driven the trio because none of them were sober.
The man told the court when he saw a boy in the same car as the victim had what looked like a machete, he got a shovel from his Ute and smashed the front windscreen of the other car.
The court heard others from the Ute also grabbed a rake and a mattock and hit the car, before they fled the scene and met up at a house in the nearby suburb of Duffy.
When asked what happened at the house, the witness said he could not remember much.
The man said the boy had also shown him something.
"He lifted up his shirt and [I saw something that] looked like a knife," he told the court.
"A black handle and a silver blade. From what I can remember."
The court heard he and another man had then ordered an Uber to take them to the fast-food outlet across the road from the skate park.
He told the court when they returned to the scene, they saw police cars everywhere.
He said the two bought a meal and then returned to the Duffy house, where he stayed until the morning.
The court heard many of those involved were summonsed by a parent on the Monday morning, before they went to police.
Driver questioned about why his fingerprints were on victim's car
On Wednesday, the driver of the man's car gave evidence about the incident, saying the group had gone to the park to support some friends in an organised fight.
The driver said he had retreated to the car and called to his friends when he saw what he thought was a machete.
But he was challenged by lawyers in the case about the fact his fingerprints were found on the victim's car.
"I do not have any explanation," he said.
"I didn't touch that car."
He also denied stabbing the victim.
