The Yale Journal of Biology and Medicine (pdf), Direct Estimates of Low-Level Radiation Risks of Lung Cancer at Two NRC-Compliant Nuclear Installations: Why Are the New Risk Estimates 20 to 200 Times the Old Official Estimates?, Dr. Irwin Bross, Director of Biostatistics at Roswell Park Memorial Institute, 1981 (emphasis added):
A former agent of the CIA has revealed that al-Qaeda leader Osama bin Laden has died of natural causes five years before the US announced his death.…“In September of 1992, I was in Chechnya, that’s when I first met the man whose name was Bin Laden. This meeting took place in a two-story house in the city of Grozny; on the top floor was a family of Gamsakhurdia, the Georgian president, who then was kicked out of his country. We met on the bottom floor; Osama lived in the same building,” Yashar said.
According to the former CIA agent, he personally knew Bin Laden’s three Chechen bodyguards, who had protected him until his death and witnessed his death on June 26, 2006.
…
“Only three Chechens buried him, according to his will” in the mountains on the Pakistan-Afghan border, he said.
Yashar added that the CIA abducted one of the bodyguards, Sami, before the announced killing of Bin Laden last year.
He says the bodyguard disclosed to the US the exact place of burial in the mountains.
“There was no assault. I know the American operations from the inside: they find the grave, dig out bin Laden and tell everyone about this. They need to show how technologically the security services worked, how each step was controlled, and then present it as a great victory to show that taxpayers are not paying taxes for nothing,” he said.
Washington announced on May 2, 2011 that Bin Laden was killed by US forces in his compound in Abbottabad, Pakistan.
The lack of transparency over bin Laden’s death has cast further doubt over the announcement.
Full article: Bin Laden died of natural causes: Former CIA agent (Press TV)
Global Geopolitics 