The James Randi Educational Foundation announced in a statement Wednesday that Randi had died the day prior due to "age-related causes.
"He had an Amazing life. We will miss him," the statement read.
We are very sad to say that James Randi passed away yesterday, due to age-related causes.
He had an amazing life. We will miss him.
Please respect Deyvi Peña's privacy during this difficult time.— Randi Foundation (@jref) October 21, 2020
The Canadian-born magician who went by the stage name the Amazing Randi was a celebrated magician and escape artist, known for such elaborate acts as extracting himself from a straight jacket while dangling over the Niagara Falls in the 1970s. In 1975, he also performed at the White House at the request of first lady Betty Ford during the presidency of Gerald Ford, according to his foundation.
Famously on "The Tonight Show Starring Johnny Carson" in 1973, Randi and the late-night host worked together to prove that Israeli mentalist Uri Geller's psychic and supernatural powers were nothing more than magic tricks.
For the show, Randi had the producers supply the props for Geller to use and he was unable to perform a single trick during the entire segment.
Decades later, Geller admitted he never had any powers but Randi lambasted him, saying "it was too late" as his claims had negatively affected too many people, organizations and governments that believed him.
In the 2014 documentary "An Honest Liar," Randi said he has spent his life fighting "people who are stealing money from the public, cheating them and misinforming them."
He also famously started The Million Dollar Challenge offering up that large sum of money to anyone who could prove they have paranormal powers. No one ever earned the award.
"The overwhelming majority refused to fill out the applications or even state a claim that can be tested. Some of them show up in person and demand to be tested while they wait," the foundation said. "We can no longer justify the resources to interact with these people"
For his work, Randi has won numerous awards, including the $272,000 "genius grant" from the John D. and Catherine T. MacArthur Foundation in 1986 for his investigations into claims of the supernatural, occult and paranormal, his foundation said.
He is remembered by Deyvi Pena, whom Randi married in 2013.
Fellow magician Penn Jillette of the duo Penn & Teller mourned Randi's death online, saying "you invented us."
Another picture from the last day I spent with Randi. I talked to him a couple times after this. My inspiration, my hero, my mentor, my friend. I will talk to him the rest of my life and my memory of him will answer. I didn't absorb enough wisdom, but I absorbed a lot. pic.twitter.com/8oerQO59m9— Penn Jillette (@pennjillette) October 22, 2020
"We will never forget that without Randi, there would not be Penn & Teller. It's really that simple," Jillette said via Twitter, posting a series of photos of himself with Randi.
"My inspiration, my hero, my mentor, my friend," he said.