Investigation has started into the crash of Piper Cheyenne N6134A about 10 mi northeast of Graham, Texas, that killed the pilot and his three passengers, all residents of Graham, which is about 75 mi west of Fort Worth. The twin turboprop crashed and burned the night of November 13 while attempting to reach Graham Municipal Airport on a flight from Wharton, Texas. Official weather data was not available at press time, but local residents reported ground fog in the area.