LOS ANGELES — While the general response to Christopher Dorner — a former Navy reservist who was fired from the Los Angeles Police Department in 2008, and is now suspected of killing three people and wounding two others as part of a vengeance-fueled killing spree, has ranged from shock to terror, some on the Internet are expressing support. As the manhunt continued as far north as the San Bernardino Mountains, late Thursday, Interscope Records rapper Ab-Soul posted a photo defending the fugitive on his Instagram page, quoting Dorner’s 11,400-word manifesto, in which he outlines plans to kill law enforcement officers...