Blood from a teenager stabbed to death was found on the murder suspect's T-shirt, a court heard.

A forensic scientist who carried out DNA tests on evidence from the case yesterday confirmed the blood of victim Kellon Hill was found on Kellan Lewis' clothing.

Lewis was one of seven teenagers arrested by Police in the early hours of August 10, 2008, on suspicion of involvement in Mr. Hill's death. Lewis, 18, denies murder and being in possession of a knife.

The 18-year-old was stabbed in the heart after trying to retrieve a gold chain which Lewis allegedly snatched from around his neck at a party.

The incident took place in Tribe Road 4B, the public access road to Elbow Beach, as Mr. Hill was leaving at around 11 p.m.

The Crown say he was set upon by Lewis, 18, Gary Hollis, 16, Zharrin Simmons, a 17-year-old girl, Devon Hairston, 18, and Kevin Warner, 19.

He was attacked with a walking cane, motorcycle helmets and a knife. The prosecution say he was also stabbed with a screwdriver.

Yesterday the jury heard from Dr. Candy Zuleger, a forensic scientist from Trinity DNA Solutions in Florida.

Dr. Zuleger received DNA samples from the victim and suspects clothing and weapons allegedly used, and was responsible for tracing DNA evidence.

She told the court she found traces of Mr. Hill's blood on the lower right side of the yellow T-shirt worn by Lewis. She also found his DNA on Mr. Hollis' black jeans and Mr. Warner's cane.

However, only Mr. Hill's skin cells were present on the screwdriver handle, suggesting he had been the only person to handle it.

When Crown counsel Carrington Mahoney asked whether Miss Simmons' DNA was on the screwdriver, Dr. Zuleger replied: "Her DNA was not on there."

She said the blood on Lewis' T-shirt was only a "weak" smear rather than a drop or spray, but admitted the blood may have been diluted on contact with water.

"When something gets wet it's going to disperse the blood out more, so it won't be a dark red stain anymore, it will be more spread out if the article of clothing is wet," she said.

The jury then heard from Jasmine Smith, who tried to save Mr. Hill's life after he was stabbed.

The 17-year-old, from Pembroke, said she travelled to the party from White Hill on the same bus as Lewis, Mr. Hollis, Mr. Hairston and Miss Simmons.

She described Lewis as the "leader" of the group and said they were all drinking rum Swizzle from a bottle.

"They were drunk," said Miss Smith. "They were acting like something was going to go down because they were saying people were after them."

She said it rained at the party and that she spoke to Mr. Hill for half-an-hour.

At around 11 p.m. he got on his motorbike to leave. "He was leaving because he thought the party was boring," said Miss Smith.

A few minutes later however, she heard a crash the sound of a bike falling to the ground, and saw Mr. Hill fighting with Lewis and Mr. Hollis.

"Gary (Hollis) was hitting Kellon Hill with a helmet and Kellan was just hitting him," she said. "They were right on him, punching him and hitting him with the helmet."

She said Mr. Hill fell to the ground and Lewis started kicking him in the stomach. He was then restrained by another boy.

When Mr. Hill got up, Miss Smith said he was "breathing heavily and he was holding his side".

He walked up the hill "wobbling" but then fell down again. "He stood up for about a minute. He was trying to walk and then he fell again," she said.

Miss Smith and two of her friends went over to help him. When they turned him on his side, they saw blood coming from a wound on the right side of his stomach.

Miss Smith applied pressure, using a white T-shirt from a bystander, and another friend cradled his head.

"What were you trying to do?," asked Rory Field, Director of Public Prosecutions. "Keep him alive," she said.

"Did the emergency services arrive?," he asked. "They came after he closed his eyes," said Miss Smith.

The trial continues.