Shooting spree across Calif county leaves 4 dead Associated Press Copyright 2013 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed. Updated 2:22 pm, Tuesday, February 19, 2013 In less than an hour, a 20-year-old student shot and killed a woman in her home and two commuters during carjackings early Tuesday, shot up vehicles on a Southern California freeway and committed suicide as police closed in on him, authorities said. The shooter, Ali Syed, was an unemployed, part-time student who lived at the Ladera Ranch residence where the first victim was slain, Tustin police Chief Scott Jordan said. Orange County sheriff's spokesman Jim Amormino said the woman killed at the home was in her 20s. From Ladera Ranch, police said the gunman headed north and within 30 minutes carjacked a Dodge pickup truck in Tustin, about 20 miles away. When the truck got low on gas, the gunman stopped at State Route 55 and McFadden Avenue in Santa Ana, stole the BMW and killed the driver, Bertagna said. The shooter then drove to a Tustin business called Micro Center and carjacked another small truck, killing one person and wounding another, Garaven said.