Marlon Osorio 26-year-old Mara Salvatrucha gang member was found guilty of two counts of murder and 10 counts of attempted murder

26-year-old Mara Salvatrucha gang member was found guilty of two counts of murder and 10 counts of attempted murder in a two-day shooting spree in the San Fernando Valley, officials said today.Two years ago, Marlon Osorio approached people he thought were rival gang members, asked where they were from, then opened fire, Deputy L.A. County Dist. Atty. Paul Nunez said in a statement.A Los Angeles jury found Osorio guilty of the first-degree murder of Nelson Ramirez, who was shot five times while he sat in his car in Van Nuys, and Jessie Garcia, who was shot in Canoga Park. Both victims were killed Aug. 7, 2006, the same day Osorio attempted to kill four other people.A week later, Osorio fired on seven others in North Hills, including one woman who suffered a collapsed lung after being shot in the back, Nunez said.Osorio was found not guilty on one count of attempted murder.The jury is scheduled to return Monday to Judge Curtis Rappe’s court for the penalty phase of the capital murder case, said Jane Robison, a spokeswoman for the district attorney's office. Prosecutors are seeking the death penalty.