SIDCUP: Rob Knox jury shown knives

And they also heard how, just after being arrested, Karl Bishop threatened to rape a boy's mother when he got out of jail.

The 21-year-old is accused of stabbing Mr Knox to death and wounding five other people on May 24 outside the Metro Bar, Station Road, Sidcup.

The Old Bailey was shown a 6in knife and another that was nearly 8in long today (Feb 19).

Forensic pathologist Dr Simon Poole told the court "both of the knives could have been used in combination" to cause Mr Knox's injuries.

Dr Poole performed a post mortem examination on Mr Knox's body at the Princess Royal on May 25.

He told the court Mr Knox had received five wounds, the deepest of which was a stab wound of 4in probably created by the longer knife.

That fatal wound went through the teenager's chest, puncturing one of his lungs and piercing his aorta, the largest artery in the body, causing haemorrhaging.

A further wound had gone into the 18-year-old's skull and he had also been stabbed in the buttocks.

Dr Poole said the fact that no cuts had been found on Mr Knox's hands or arms suggested he had not tried to defend himself.

Brian Altman for the prosecution asked him if this could have been because Mr Knox had Bishop in a bear hug and Dr Poole agreed.

Dr Poole also said Mr Knox "may have been mildly intoxicated at the time of the incident."

Mr Knox also had bruising on his hand which seemed to be consistent with reports he was fighting one week before.

Earlier in the day 18-year-old Karen Jones told the court how Bishop was confronted by friends of Mr Knox at Queen Mary's Hospital, Sidcup.

She said Charley Grimley told Bishop he should "rot in jail."

Miss Jones said: "He was sitting in the ambulance laughing like he wasn't bothered."

She told the court he said: "I don't care, I've been in there before and when I get out I'm going to rape your mum."

Bishop, aged 21, of Beaver Lodge, Carlton Road, Sidcup, denies murder and five counts of wounding with intent.

The trial continues.