LOS ANGELES — Sebastian Dumbrava seemed like an ordinary UC Irvine student, studying computer science and applying for summer internships.
Then his life unraveled, beginning with several Reddit posts that led campus police to place him on a psychiatric hold, even though he denied writing them.
He sued the University of California Board of Regents, angry that his prospects of working for the federal government had probably evaporated. He tweeted about suicide and about "serious consequences." He shared a quote about "blood on your hands" from the gunman who killed 32 people at Virginia Tech in 2007.
