Witnesses who saw a gunman walk into a grocery store and open fire described the events in the Supreme Court yesterday.

Christoph Duerr, 26, from Sandys, and Le-Veck Roberts, 21, from Warwick, are charged with the premeditated murder of Ricco Furbert and Haile Outerbridge, who were shot dead inside Belvin’s Variety on January 23, 2013.

Mr Roberts is also charged with attempting to kill Zico Majors on January 16, 2013, in the Khyber Heights area of Warwick; taking a vehicle without consent on the same day; and taking a vehicle without lawful authority on the day of the murders.

The Crown alleges that Mr Roberts was the gunman in both attacks, with Mr Duerr storing and supplying the firearm.

As the trial began on Monday, Mr Majors testified that while he could not identify his shooter, he knew that Mr Roberts was not the gunman.

Yesterday, the court heard evidence from three witnesses — none of whom can be identified for legal reasons — who were inside Belvin’s when the shooting took place.

The first witness, the store’s cashier, said she arrived for work at 6.30pm and was still there at 8.50pm when a security guard arrived. At that time, Mr Outerbridge and another customer were in the store, she said.

She said Mr Furbert entered the store and looked around, greeting Mr Outerbridge and the other customer.

“When he finished he said bye to Haile and he went towards the door,” she said. “He started at the door and was slowly going out. He started walking out a little bit, then he kind of came running back into the shop and said, ‘they’re outside, they’re outside, they got guns’.”

She said that Mr Outerbridge ran down an aisle towards the store room near the rear of the building, while Mr Furbert ran past the cashier’s booth and down the other aisle. As the men ran, she saw another man enter the shop.

“He wasn’t running. He was kind of walking fast. He was attempting to follow Ricco, but he stopped and came back on the other side. He went down the left aisle.”

She said the gunman was wearing a dark jacket and a helmet with a mirrored visor. He walked down the aisle out of sight, and she heard five gunshots come from the direction of the store room. She said the security guard told her to call 911, but she had already pressed the panic button. The gunman then walked out of the shop.

“He didn’t say anything,” she said. “He just looked in the direction of myself and the security guard for a second or two and he walked out of the shop.”

She locked the door from inside the cashier’s booth and called the Police. She then walked to the store room on the instructions of the Police. When she got there, she saw Mr Furbert lying on top of Mr Outerbridge.

She said she could not see Mr Outerbridge’s face, but he appeared to be moving his arm. Mr Furbert, meanwhile, was breathing shallowly.

She was still there when the first officers arrived, and she left the men to unlock the door for the Police.

The security guard said the gunman entered the store in a semi-crouch with a firearm in his right hand. He said the gunman walked towards the store room and he heard four shots. As soon as the shooter left, he called 911 and went to check on the men.

“They were on the floor laying down with Ricco on top,” he said. “I asked Ricco if he was cool and he mumbled something. I told him everything was going to be all right. Ricco kept mumbling but I couldn’t understand what he was saying.”

He said the shooter had been wearing a helmet, but could not remember anything else about the man, adding: “I was shocked myself.”

The third witness, a shopper, said that after the gunman left the store he heard a motorcycle start up and ride away, although he could not say which way it went.

Asked about what the shooter looked like, he could not remember any details.

“It happened so quick I didn’t take any note,” he said. “I saw the gun and everything went black one time. I couldn’t believe it.”

The trial continues.