Six dead in Washington state shooting rampage: reports WASHINGTON (AFP) — A shooting spree in Washington state left six dead and two wounded, with the suspected gunman described as mentally disturbed with numerous convictions, local media reported Wednesday. The victims included a sheriff's deputy, Anne Jackson, 40, in the killings that took place Tuesday in Skagit County in the northwest of the state, Seattle newspapers reported. The suspect was identified as 28-year-old Isaac Zamora, who was arrested after fleeing police in a high-speed car chase on Interstate 5, according to the Seattle Post-Intelligencer. The suspect's mother, Dennise Zamora, told the paper that her son had a history of mental illness but had refused treatment. Court records reportedly showed numerous misdemeanor convictions for various charges, including drug possession and petty theft. "We're devastated for everybody," she was quoted as saying. "I'd rather it had been him or me, rather than these dear people." Her son had been released from jail on August 6 on a drug conviction. The dead were shot at several locations, including the sheriff's deputy who was responding to a call about a disturbance at a house when she was killed near the town of Alger, said State Patrol Trooper Keith Leary. Police became concerned about the deputy when she did not respond to calls from the house and reinforcements were sent in, officers said at a news conference in Mount Vernon. When a backup officer arrived at the house, Jackson was found dead. "From what we were told, he was just going down the road and shooting at people," Leary said. A second victim was killed in Alger and two construction workers were shot nearby. Another body was found a few houses away, according to Leary. A motorist was later shot dead on Interstate 5, as the suspect was fleeing south at speeds of more than 90 miles (145 kilometers) per hour with police in pursuit. Zamora was forced off the freeway at Mount Vernon and drove to the Skagit County Sheriff's Office, surrendering in a parking lot. The first shootings were reported after 2 p.m. Tuesday (2100 GMT) and the suspect was in custody about two-and-a-half hours later. Zamora had been on a county sheriff's office watch list, police said. A motive for the shootings remained unclear. "It's going to be some time before we know what happened," Leary told The Seattle Times. Governor Chris Gregoire called for an independent review into the criminal history and supervision of Zamora, who was under the authority of the Department of Corrections for three weeks, the Post-Intelligencer wrote.