A witness has described how five teenagers set upon Kellon Hill armed with a knife, cane, screwdriver and motorcycle helmets.

Supreme Court heard the 18-year-old fought off the gang but later died from his stab wounds.

Tristan Martin, a 17-year-old witness, on Friday said one of the teenagers had "blood on their hands" but they all ran off down to the beach.

The prosecution say Mr. Hill died from a stab wound to the heart after trying to retrieve a gold chain which Kellan Lewis allegedly snatched from around his neck. A post-mortem examination revealed the fatal wound was caused by a knife.

The incident took place in Tribe Road 4B, the public access road to Elbow Beach, as Mr. Hill was leaving a party. Lewis, 18, denies murder and being in possession of a knife on August 9, 2008.

The court heard he travelled to the party by bus from White Hill, Somerset, with Gary Hollis, 16, Zharrin Simmons, 17, and Devon Hairston, 18.

They were joined there by Kevin Warner, 19, whom the prosecution says was carrying a cane.

On Friday the court heard evidence from Mr. Martin, of Warwick, who said he saw Lewis, Mr. Hollis, Mr. Hairston and Miss Simmons drinking from a liquor bottle.

"It was Smirnoff or Cockspur," he said. "It was all of them, some of them, most of them [drinking]."

Director of Public Prosecutions Rory Field asked how the group was behaving, and he replied: "Wild and woolly, almost crazy."

He said he saw Lewis with a knife handle sticking out of his pants. He also saw the defendant with a teenager "swinging a cane".

"I heard 'fight, fight'," said Mr. Martin.

"At first I saw Hill fighting with Gary [Hollis]. It was Gary onto Hill. Hill was fighting, exchanging fists. The next thing everybody was jumping in, hitting the boy and all that.

"I don't know who came after Gary but the guy who came, came in with helmets. I think there was two people with helmets."

He said Mr. Hill however fought back. "I think he did a good job. He was standing up swinging back, doing pretty good for himself."

Crown counsel Rob Welling then asked: "Apart from these four using their hands or fists on Mr. Hill, did you see this group using anything else?"

"A cane, a helmet or helmets, a knife, a screwdriver," said Mr. Martin.

"I saw them hit him with the cane two or three times in the head. It was the same guy swinging it."

He said Miss Simmons then stabbed Mr. Hill. "She came like this stabbing him," he said. "The girl, Zharrin. More than once.

"I saw it afterwards on the ground, it was like a screwdriver, like a Phillips, an ice pick, with a pointy edge."

Asked whether he saw a knife being used, he replied: "I never saw it, I just saw the handle."

After Mr. Hill collapsed to the ground, the group ran off.

"She dropped it [the weapon] and took off down the hill towards the beach," said Mr. Martin. "They all eventually ran down to the beach."

He added he followed them as he was "vexed" at what had happened.

"They were standing together with blood all over them on their clothes, all over their shirts. I think one of them had blood on their hands. Then they ran off together," said Mr. Martin.

When he walked back to the Tribe Road he found Mr. Hill covered in blood. "He had blood all over him, he was mumbling and breathing heavy, trying to say something. Everybody was basically around him."

Mr. Welling asked him: "Do you remember what Mr. Lewis was doing during the fight?" "No," replied Mr. Martin.

In cross-examination defence lawyer John Perry QC said: "You didn't see Kellan with any blood on his hands, did you. That's right isn't it?" "Yes," he said.

The jury also heard evidence from Jamiko Benjamin, 20, of Devonshire, who said he did not see the fight and got a taxi after the party.

He called his friend Deneiro to find out where he was and the taxi picked him up, together with Lewis, Mr. Hollis and Mr. Warner from the Warwick Seventh-day Adventist Church further along South Road.

The group all stayed the night at Lewis' house in White Hill. Mr. Benjamin said he could not remember anything as he had been drinking, but woke up the next morning to find himself being arrested.

"I just remember waking up in the morning and the Police were there," he said.

The trial continues today.