A crime scene expert told a jury she used lasers and rods to figure out how the shooting murder of Kumi Harford unfolded.Jan Johnson, who was called in from Florida to process the scene, stuck rods in the numerous bullet holes in Mr Harford's car to find out where his assailants may have stood.She then waited until nightfall and used lasers to depict the paths of the bullets. She took pictures of her reconstruction work, which she shared with the Supreme Court jury today.Mr Harford, 30, was shot multiple times while sitting in the driver's seat of his car on St Monica's Road, Pembroke, around 5am on December 5, 2009.He suffered bullet wounds to his head, chest, right shoulder and right hand.Prosecutors say the victim was a member of the 42 gang which inhabits the St Monica's area and was attacked by more than one person, using two guns.One accused man, Antonio Myers, 25, is on trial accused of murder. Prosecutors say he is a member of the rival Middletown gang.Ms Johnson told his trial her reconstruction showed two of Mr Harford's car windows were shot out; the rear driver's side window and the front passenger's side window."Based upon the rods placed in the defects in the vehicle there's at least three possible positions for the shooter or shooters to be in," she explained.She showed a diagram depicting gunmen firing from three different positions; in front of the car on the passenger's side, in front of the car on the driver's side and to the rear of the car on the driver's side.She said the victim's car was moving during the attack, which began on St Monica's Road and ended when the car crashed as he tried to escape down Mission Lane.She believes there were two gunmen involved in the killing rather than one gunman with two guns.She said it was possible one of the shooters was running along the inside of a church wall and shooting over it into the car from an angle above the vehicle as it moved along the road.A total of 13 bullets and fragments were recovered from the car.Ms Johnson said her reconstruction indicated that a bullet which entered through the driver's window and ended up in the seat back was the one that most likely struck Mr Harford in the head.She said this bullet was the only 9mm bullet found at the scene. The rest of them were fired from a .40 calibre firearm.The trial heard evidence from US gun expert Dennis McGuire yesterday that the .40 calibre firearm used in the Harford shooting was the same weapon used to murder Kenwandee (Wheels) Robinson on May 22, 2009.The trial heard last week from local gang expert Sgt. Alexander Rollin that he believes Mr Robinson was a 42 member who was killed by the Parkside gang, which is allied with the Middletown gang.Both Parkside and Middletown have been locked in deadly rivalry with the 42 gang, he explained.Prosecutors say Mr Myers is guilty of murder if the jury believes he was involved in the attack, regardless of which assailant fired the fatal shot or shots.The accused man denies murder and using a firearm and the case continues.