Published: May 03, 2011 11:22 PM EDT
Updated: May 03, 2011 8:22 PM EDT

CAPE CORAL, Fla.- We're learning more about how the U.S. found Osama Bin Laden's hiding place.

Crucial information came from a detainee at Guantanamo Bay.

Dr. John Rudisill, from Cape Coral, has first-hand knowledge about the base.

He spent a month at Guantanamo Bay researching the facility for a book.

Though the camp has been under fire in the past, Dr. Rudisill says the work being done there is protecting the U.S.

"I think it's fantastic cause it just reiterates the value of Guantanamo in the overall of scheme in the war on terrorism," Dr. Rudisill said.

A retired air force colonel, Dr. Rudisill spent 30 days researching what life is like at Guantanamo Bay for a book called "Inside Gitmo".

When President Obama wanted to close the camp in 2009, Dr. Rudisill said that would be a bad move.

"Guantanamo is so important in the war on terror," he said.

Years later, detainees at Guantanamo would provide the crucial information to where  Bin Laden was living.

According to sources, by interrogating some of the detainees the US was able to hone in on Bin Laden's courier and driver, who led armed forces to his front door.

"It's an incredible feat. It's an accomplishment for our intelligence agency and Guantanamo," Dr. Rudisill said.

Interrogation practices have come under fire at Guantanamo Bay.

But Rudisill said they can provide information the government can piece together.

" It all came from Guantanamo," he said. "There's still a treasure trove information down there. It takes years for it to come out."