Officials are searching for a motive in the Pearl Harbor shooting that left two civilian employees dead and a third injured before the gunman took his own life. The shooter has only been identified as an active-duty US sailor whose submarine was docked at the shipyard near Honolulu. Rear Adm. Robert Chadwick, commander of Navy Region Hawaii, said he didn’t know the motive behind the shooting Wednesday. “We have no indication yet whether they were targeted or if it was a random shooting,” Chadwick said. Gunfire broke out around 2:30 p.m. at the base, which hosts both the Navy and...