This 2006 photo released by Viking shows Greg Mortenson, left, and David Oliver Relin, co-authors of the best-selling book "Three Cups of Tea." Relin committed suicide in Corbett, Ore., outside Portland, on Nov. 14, said the deputy Multnomah County medical examiner, Peter Bellant, Sunday, Dec. 2, 2012. Relin was 49. (AP Photo/Viking, Steven Winslow)
GRANTS PASS, Ore. (AP) — David Oliver Relin, co-author of the best-selling book "Three Cups of Tea," said in legal filings about a year before his recent suicide that his career suffered from allegations of lies in the story of a humanitarian who built schools in Pakistan and Afghanistan.
Relin committed suicide in the rural community of Corbett near Portland last month, according to the deputy Multnomah County medical examiner, Peter Bellant, late Sunday. He was 49.
Relin died of a blunt force head injury on Nov. 14, Bellant said. He declined to provide other details. Relin's family also declined to provide details of his death.
The book, which has sold about 4 million copies since being published in 2006, describes how Greg Mortenson, the other co-author, resolved to build schools for Pakistani villagers who nursed him to health after a failed mountaineering expedition.
The account came under scrutiny last year when "60 Minutes" and writer Jon Krakauer said it contained numerous falsehoods.
In April, a U.S. district judge rejected a lawsuit by four people who bought "Three Cups of Tea," dismissing claims that the authors, the publisher, and a charity associated with the book conspired to make Mortenson into a false hero to make money.
In an August 2011 court filing, Relin attorney Sonia Montalbano said the lawsuit "has had a negative impact on Relin's livelihood as an author" and that he did not "maintain any insurance for this litigation, which means that he has to personally fund his defense."
In another filing, Montalbano said "Relin takes no position on many of the accusations made by the Plaintiff" but "does stand by the manuscript he wrote."
She pointed out that in an introduction Relin wrote for "Three Cups of Tea," he "fully acknowledged potential inaccuracies." In that introduction, Relin wrote that Mortenson's "fluid sense of time made pinning down the exact sequence of many events in this book almost impossible."
Mortenson did not respond to phone calls from The Associated Press seeking comment.
Relin "understood the potential importance of that story — that it could show that building schools was an antidote to just dropping bombs on that part of the world," said Lee Kravitz, who introduced Relin and Mortenson.
Relin "was very committed to this project," said Elizabeth Kaplan, the agent who represented both authors.
"David seemed to understand Greg and his mission," she said.
Kravitz and Kaplan are married.
Following allegations that parts of "Three Cups of Tea" were made up, Mortenson denied any wrongdoing, though he has acknowledged some of the events were compressed over different periods of time.
"Three Cups of Tea" was conceived as a way to raise money for and tell the story of Mortenson's Central Asia Institute, which he co-founded in 1996 to build schools in Central Asia.
Relin interviewed Mortenson, attended several of his lectures and read previous articles before preparing a book proposal that was bought by Penguin Group. After selling Penguin on the idea, Relin then conducted more interviews with Mortenson and others before writing the manuscript, Montalbano said.
In a 2008 interview with the University of Oregon literary journal Etude, Relin said he had objected to Mortenson being identified as co-author.
"That's been the only negative thing about this whole adventure for me," Relin said.
"It was published that way over my objections," he added.
The publisher released a statement saying, "All of us at Penguin are saddened to hear of the death of David Oliver Relin. We extend our heartfelt condolences to his family."
His second book, "Second Suns, Two Doctors and Their Amazing Quest to Restore Sight and Save Lives," was scheduled to be published in June.
The lawsuit against Mortenson, Relin and Penguin was filed in May 2011 in Montana, where Mortenson lives and the Central Asia Institute is based.
Relin was not involved in a separate investigation by the Montana attorney general into how Mortenson ran the charity.
The investigation led to a settlement in April that called for Mortenson to reimburse the charity nearly $1 million, his removal from a position of financial oversight and an expansion of the board.
The probe and settlement did not deal with the content of "Three Cups of Tea" or Mortenson's sequel, "Stones Into Schools," which Relin did not write.
Relin was born in Rochester, N.Y. He is survived by his wife, two sisters, and his mother.
AP writer Matt Volz contributed to this report from Helena, Mont.