 Actor and comedian Martin Mull has died. Mull's daughter says he died Thursday following a long illness. He was 80 years old. Mull found fame with his role in the satirical soap opera Mary Hartman. Mary Hartman, he starred in its spinoff, Fernwood Tonight. This is NPR. Good morning. With Maine News, I'm Carol Bousquet. Federal investigators are looking into why a commercial jet took off from a closed runway at the Portland jet port this week. Nick Song reports.