daughter. , Pickens had twelve grandchildren. In January 2013, Pickens' 21-year-old grandson Thomas "Ty" Boone Pickens IV died from a heroin overdose. Ty, the son of Thomas B. Pickens III, was a student at Texas Christian University in Fort Worth, Texas. In July 2009, Pickens was the subject of controversy after he had a construction crew go to his grandmother's former home, that was now owned by someone else, in Holdenville, Oklahoma and remove a slab of driveway concrete that he had signed as a child. The current owner of the home asserted ownership, and the slab was returned. In February 2010, a judge ruled that the slab belonged to the current homeowner. Pickens died at his home in Dallas on September 11, 2019. He was in declining health and suffered a series of strokes and a fall in 2017, but the cause of death was not disclosed at the time of his death. On September 18, 2019, his foundation published "A final message from T. Boone Pickens" shared before his passing on September 11, 2019", a personal reflection about his life, lessons learned and his mortality. References Bibliography Pickens, T. Boone, The First Billion is the Hardest: Reflections on a life of Comebacks and America's Energy Future, 2008, Pickens, Boone, The Luckiest Guy in the World, 2001, Pickens, Boone, Boone, 1987, External links Biography of Boone Pickens (Horatio Alger Awards) PickensPlan Write TV Public Television Interview with T. Boone Pickens T. Boone Pickens Biography and Session Description on the World Business Forum where Pickens is a featured speaker for the 2009 event Voices of Oklahoma interview with T. Boone Pickens. First person interview conducted on August 6, 2010, with T. Boone Pickens. T. Boone Pickens And Andrew Hall Are Bullish About These Energy Stocks December 7, 2011. Seeking Alpha 1928 births 2019 deaths American billionaires American businesspeople in the oil industry American chairpersons of corporations American environmentalists American financiers American hedge fund managers American investors American money managers Ranchers from Texas Businesspeople from Oklahoma Businesspeople from Texas Corporate raiders Giving Pledgers 21st-century philanthropists National Review people Oklahoma State University alumni People associated with solar power People associated with wind power People from Amarillo, Texas People from Holdenville, Oklahoma Amarillo High School alumni Private equity and venture capital investors Sustainability advocates The American Spectator people Texas A&M University alumni Texas Republicans Activists from Texas 20th-century American businesspeople 20th-century American philanthropists