question: Why did the director of film Mexicali Rose (1929 Film) die?
context: Title: Mexicali Rose (1929 film)
  Passage: Mexicali Rose is a 1929 American pre-Code romantic drama film directed by Erle C. Kenton and starring Barbara Stanwyck and Sam Hardy. A silent and sound version are preserved at the Library of Congress.
  Title: Erle C. Kenton
  Passage: Erle C. Kenton (August 1, 1896 – January 28, 1980) was an American film director. He directed 131 films between 1916 and 1957. He was born in Norborne, Missouri and died in Glendale, California from Parkinson's disease. Kenton and Edward Ludwig were the principal directors of the 1958-1960 CBS television series, "The Texan", starring Rory Calhoun as Bill Longley, a "Robin Hood of the West", who drifts through the region helping persons in need.
answer: Parkinson
citations: Erle C. Kenton Mexicali Rose (1929 film)