Emmett "Curly" Thornton died in Montana at age 50, on 21 January 1999. But the cause of death is not easily found: internet rumors say he was murdered, which would not be surprising given that he was accused of child abuse, rape, and domestic violence. But the only newspapers that have this information do not seem to be available online. You may want to contact the Billings, Montana or Butte, Montana public library, and see if they can check his obituary for you.
Curly Thornton's cause of death is not known, but it is suspected that he was murdered.
He deserved to be murdered. Tortured & murdered the same way he did to others. A monster
suicide
Ernie Thornton died in 1969.
Curly Ray Cline died in 1997.
Willard Thorp died in 1992.
Jimmy Don Thornton died on October 3, 1988, in San Francisco, California, USA of heart failure.
suicide
Tony Thornton died in 2009.
Tom Thornton died in 1951.
A.G. Thornton died in 1969.
Tex Thornton died in 1981.
Thornton Chase died in 1912.
Bonnell Thornton died in 1768.
Anna Thornton died in 1865.
Martin Thornton died in 1986.
Mairtin Thornton died in 1984.
Eleanor Thornton died in 1915.
Charley Thornton died in 2004.