Chris Harper-Mercer, the man accused of opening fire at a rural Oregon community college Thursday, formerly lived in the South Bay and attended a school for teens with emotional disabilities. Records show Harper-Mercer, 20, lived in a ground-floor apartment on Arlington Avenue at 230th Street in Torrance with his mother, Laurel Harper, from 2011 to 2013. The owner of the building said he did not know them and neighbors did not recall them. But current residents, greeted by reporters knocking at their doors late Thursday, were shocked to learn that the man suspected of committing the nation’s latest mass shooting...