A music executive who has worked on albums with the Spice Girls and Jessica Simpson has died after being shot in a random attack in Hollywood.John Atterberry died in hospital on Monday after being injured on Friday.The 40-year-old executive was shot in the face and upper body as he drove his Mercedes-Benz near Vine Street and Sunset Boulevard.Atterberry was the only seriously injured victim of 26-year-old Tyler Brehm, who police say fired nearly 20 bullets in the air and at cars as he screamed that he wanted to die. He was killed by police minutes later.Brehm\'s ex-girlfriend said they had recently broken up but police have said they are still looking for a motive for the attack.Brehm walked down the middle of Sunset Boulevard firing on motorists with no clear target and injuring three of them.He was shot and killed by an off-duty motorcycle officer and an LAPD detective.In amateur video taken at the scene, the gunman was pacing back and forth firing what appeared to be a handgun. The officers ordered the suspect to stop and drop his weapon. He was shot when he pointed his weapon at the officers.