Thompson killed himself with a gun, and his funeral was a gala event:
On August 20, 2005, in a private funeral, Thompson’s ashes were fired from a cannon. This was accompanied by red, white, blue, and green fireworks—all to the tune of Norman Greenbaum’s “Spirit in the Sky” and Bob Dylan’s “Mr. Tambourine Man”. The cannon was placed atop a 153-foot (47 m) tower which had the shape of a double-thumbed fist clutching a peyote button, a symbol originally used in his 1970 campaign for sheriff of Pitkin County, Colorado. The plans for the monument were initially drawn by Thompson and Steadman, and were shown as part of an Omnibus program on the BBC titled Fear and Loathing in Gonzovision (1978). It is included as a special feature on the second disc of the 2004 Criterion Collection DVD release of Fear and Loathing in Las Vegas, and labeled as Fear and Loathing on the Road to Hollywood. According to his widow, Anita, the $3 million funeral was funded by actor Johnny Depp, who was a close friend of Thompson’s. Depp told the Associated Press, “All I’m doing is trying to make sure his last wish comes true. I just want to send my pal out the way he wants to go out.” An estimated 280 people attended, including U.S. Senators John Kerry and George McGovern; 60 Minutes correspondents Ed Bradley and Charlie Rose; actors Jack Nicholson, John Cusack, Bill Murray, Benicio del Toro, Sean Penn, and Josh Hartnett; musicians Lyle Lovett, John Oates and David Amram, and artist and long-time friend Ralph Steadman.
The tower holding the cannon was torn down later in 2005 (photo by Paul Conrad, the Aspen Times):