DNA found on personal belongings of missing teen Sierra LaMar was the key to an arrest in their two-and-a-half-month investigation, authorities said in a news conference today. The Santa Clara County Sheriff's Department charged Antolin Garcia-Torres, 21, with the murder and kidnapping of the 15-year-old teen from Morgan Hill, Calif. Garcia-Torres's DNA was found on clothing in LaMar's bag recovered shortly after her disappearance, according to Sheriff Laurie Smith in the press conference. The forensic evidence helped identify Garcia-Torres as a suspect on March 28. The Sheriff's office then placed him on 24-hour surveillance. "We had hoped he would lead us to where Sierra was," says Smith. Garcia-Torres is also the owner of the red Volkswagen Jetta that authorities seized in connection with the case on May 8. LaMar, 15, was last seen on March 16 at her home in Morgan Hill, Calif. getting ready for school, but she never made it there. The Sheri...