https://www.theguardian.com/books/2020/feb/18/true-grit-author-charles-portis-dies-aged-86

Landmark western author’s most famous novel gave John Wayne an Oscar-winning role, and inspired the Coen brothers

Charles Portis, the reclusive author of the western True Grit, in which a 14-year-old girl sets out to avenge her father’s murder, has died at the age of 86.

Portis’s brother Jonathan told the Arkansas Democrat-Gazette that the writer died on Monday in a hospice in Little Rock, Arkansas. He had been diagnosed with Alzheimer’s disease.