He suffered a stroke at the beginning of August.
The author of 45 novels, Leonard had been writing his 46th.
His official site simply says “Elmore passed away this morning at 7:15 AM at home surrounded by his loving family.”
Many of his books had been adapted into movies – Hombre, 52 Pick-Up, Out Of Sight, 3:10 To Yuma, Mr. Majestyk, Stick, Killshot, Get Shorty and Rum Punch (which became Jackie Brown).
US Marshal Raylan Givens in the novel Fire In The Hole was the basis of the TV show Justified.
He is survived by five children, 12 grandchildren and five great-grandchildren.