ANZA -- The California Highway Patrol today said that a head-on crash on State Route 371 that severely injured three men was caused by an alleged drunk driver.The crash happened about 2 p.m. Friday west of Homestead Road in an unincorporated county area west of Anza.The CHP said Margarito Pacheco of Vista, 40, was at the wheel of a Chevy Astro van heading west on the highway when he pulled over to the right shoulder, made a U-turn and began heading in the wrong direction in the westbound lane.That's when Pacheco's van collided head-on into a Toyota Tacoma pickup truck being driven by Top Metal Dragon, 42, and carrying passenger Hongsa Insixiengmay, 58, of Federal Way, according to the CHP.All three suffered major injuries. Pacheco was extricated from his van by firefighters
