In 2005, a handwritten letter from Henning to James Randi was placed for auction on eBay, unbeknownst to Randi. When Randi learned of it, he announced on his blog that the letter had been "stolen" from his files. A week later, Randi wrote that he "managed to have the sale stopped" and that the letter was back in his possession, but did not elaborate on further details of the controversy. Randi claimed that Henning had immersed himself so thoroughly in TM that he "abandoned regular medical treatment for liver cancer, continued to pursue his diet of nuts and berries, and died of the disease."