J. Robert Port, who led The Associated Press investigative team when it won a Pulitzer for the No Gun Ri massacre probe, has died at age 68. Port died Saturday in Lansing, Michigan, according to his sister, Susan Deller. He had been treated for cancer for over seven years by the U.S. Department of Veterans Affairs. The Associated Press hired Port in 1995 as special assignment editor. He led the Pulitzer Prize-winning No Gun Ri reporting that exposed a mass killing of civilians by US troops during the Korean War. Port also led investigations into illegal child labor in the U.S., which prompted a change in how laws were enforced.