The man accused of murdering 87-year-old Irish man John Mackey in London was removed from the court this afternoon after repeated interruptions.
Peter Augustine shouted from the dock that he never hit the pensioner, and that he ran away after taking his bag.
The 59-year-old defendant denies the charges of murder and robbery.
"I never hit him. I took the bag and I ran," he shouted.
After leaving the court voluntarily, he then returned and interrupted proceedings again during the prosecution's opening statement.
Judge Sarah Whitehouse told Mr Augustine to leave.
John Mackey was originally from Callan, Co Kilkenny. On 6 May he walked to his local Co-op supermarket to purchase cornflakes, a cottage pie and a newspaper.
He then visited a kebab shop for a takeaway. However, while walking home he was attacked and robbed.
Mr Mackey died from head injuries two days later.
The prosecution shared the account of several witnesses, one saw a "very aggressive" attack on Mr Mackey. They said they saw an attacker "stomping and kicking" the pensioner.
Another witness said they saw Mr Mackey being punched.
The court heard the account of witness, Dr Rebecca O'Connell, who heard a man shouting "give me the bag".
When police arrived at Peter Augustine's accommodation to arrest him, they found the contents that had been in Mr Mackey's bag, including the cottage pie which appeared to have been eaten.
A pathologist had found that the 87-year-old died from blunt force impacts to his head and chest.
Mr Augustine denied attacking Mr Mackey, the court heard that he insisted he only tapped him lightly on his leg and said, "alright guv".
He thought that he was drunk and walked off.
The court was also told that on 13 May, when Peter Augustine first appeared in court, he said on the court record: "I don’t want bail ... because I know what I did. I don’t want bail, I’m guilty."
John Mackey's family, who described him as a real gentleman at the time of his death, were in court today. Some became visibly upset when his injuries were described.
The trial is set to continue at the Old Bailey for at least two weeks.
