Firefighters found Andrea DelVesco's body in a burning Westwood apartment a block from the campus, where she was a fourth-year psychology student. As details about her life emerged, Los Angeles police detectives delved into whether the killing was tied to her recent prosecution on charges of possessing a cocktail of party drugs, including Ecstasy and meth. But on Tuesday, prosecutors charged Alberto Hinojosa Medina and Eric Marquez — both 22-year-old students — with murder in DelVesco's death, saying Medina stabbed her after burglarizing a nearby apartment and then breaking into her home. Medina is also accused of setting fire to...