A teenager accused of murdering Tauri Litchfield told police how a 14-year-old kicked the Mandurah sailmaker in the chest and head.
The Perth Children's Court was today shown more of the 16-year-old's interview with police 10 days after Mr Litchfield's death.
The boy is one of five teenagers, aged between 14 and 16, on trial charged with murder over Mr Litchfield's death in March last year.
The boys have all pleaded not guilty.
In the interview, the 16-year-old told police Mr Litchfield slapped the 14-year-old on the back of the head after he thought the boy had tried to steal his wallet.
He said the teenager responded by asking Mr Litchfield: "How would you like if I slapped you in the head" before he punched Mr Litchfield, knocking him to the ground.
While Mr Litchfield was on the ground, the boy kicked him in the chest and head. Mr Litchfield managed to get up and ran from the group.
The 16-year-old denied to police that the group then chased Mr Litchfield.
He also told police the boy who had punched Mr Litchfield then kicked his leg as though he were trying to trip him, but he did not lose his balance and kept running.
Prosecutors allege the group chased Mr Litchfield until he fell or tripped over a wall and hit his head on a bitumen carpark.
The teen claimed Mr Litchfield did not trip over the wall but appeared to land on his feet, and he fell and hit his head on the ground after trying to spin around.
He told police he then picked up a mobile phone that was on the ground and put it in his pocket, but he then gave it to one of the other boys.
The 16-year-old said some of the boys were at the 14-year-old's house a few days later, where they spoke about what had happened.
He said he and another boy said they were "going to tell the truth" and the 14-year-old was swearing and worried and said he would claim he was acting in self-defence.
The trial continues.