"Then another friend at the funeral told me the same thing," Keith Kilgore said. "This guy was his best friend, and about the only other Christian on campus.

"The third one was the last person that my son talked to an hour before [he died,]" Keith Kilgore told WND, referring to a member of his extended family whose name is not being revealed here.

That relative, who had struggled with his own faith and had returned to Christianity, wrote in a later e-mail that Jesse "started to tell me about his loss of faith in everything."

"He was pretty much an atheist, with no belief in the existence of God (in any form) or an afterlife or even in the concept of right or wrong," the relative wrote. "I remember him telling me that he thought that murder wasn't wrong per se, but he would never do it because of the social consequences - that was all there was - just social consequences.

"He mentioned the book he had been reading 'The God Delusion' by Richard Dawkins and how it along with the science classes he had take[n] had eroded his faith. Jesse was always great about defending his beliefs, but somehow, the professors and the book had presented him information that he found to be irrefutable. He had not talked … about it because he was afraid of how you might react. ... and that he knew most of your defenses of Christianity because he himself used them often. Maybe he had used them against his professors and had the ideas shot down."

He then explained to Jesse his own personal journey of seeking "other explanations of God's existence" and told of his ultimate return.

"I told him it was my relationship with God, not my knowledge of Him that brought me back to my faith. No one convinced me with facts. ... it was a matter of the heart."

Keith Kilgore believes it was a biology class that raised questions for his son, and a biology professor at Jefferson Community College in Watertown, N.Y., where his son was attending, who suggested the book.

A school spokeswoman told WND that the "God Delusion" was not a part of the biology curriculum, and several of the professors she contacted said they had not even read the book. However, the spokeswoman was unable to contact all of the professors in the department and could not state that none of them had suggested the book to Jesse.

Local police also did not respond to WND inquiries about the investigation into the death.

"One of his friends, and his uncle (they did not know each other) both told me that Jesse called them hours before he took his life and that he had lost all hope because he was convinced that God did not exist, and this book was the cause," Keith Kilgore told WND.

Keith Kilgore, a retired military chaplain who has dealt with the various stages of grief and readily admits he's still in the "anger" stage over his son's death, said his son apparently had checked the "Delusion" out of the college library.

"I'm all for academic freedom," Keith Kilgore said. "What I do have a problem with is if there's going to be academic freedom, there has to be academic balance.

"They were undermining every moral and spiritual value for my [son]," he said. "They ought to be held accountable."

He suggested the moral is for Christians simply to abandon public schools wholly.

"Here's another thing," he continued. "If my son was a professing homosexual, and a professor challenged him to read [a book called] 'Preventing Homosexuality' - If my son was gay and [the book] made him feel bad, hopeless, and he killed himself, and that came out in the press, there would be an outcry.

"He would have been a victim of a hate crime and the professor would have been forced to undergo sensitivity training, and there may have even been a wrongful death lawsuit.

"But because he's a Christian, I don't even get a return telephone call," the father told WND.

He said he tried to verify the book assignment himself several times, without getting a response from the school.

Jesse Kilgore blogged on NetPotion and Newblog, and the writings that remained mostly addressed social ills and how anti-Christian many of the world's developments appeared to be.

He used the pen name JKrapture because, his father said, "He believed in the rapture, the evangelical concept of the Lord coming back."

On the Web, Jesse described himself as "conservative and mainly independent. I am a culture warrior and traditionalist. I have been debating since I was in 5th Grade, and never looked back. It is a habit I can't let go of."

One of Jesse's uncles, writing on the same website as Jesse, wrote: "While I knew he was having struggles with his faith, I had no idea that it ran that deep. - There are not enough words to describe how devastated I am at his loss. I know that some of you got to know him pretty well and (since I already started getting some questions about him) felt that you all should know that he is no longer with us."

From among the online community came these responses: "I am shocked and so sorry for your loss – our loss. My prayers are with you and all of your family at this difficult time," and "I AM at a loss of words.....I am sooooo sorry to hear your loss. My thoughts and prayers are with you and your family."

Keith Kilgore told WND he feels, by allowing his son to move into the atmosphere of a secular school, like "I put a toddler in the front of my car."

"My son is the Adam Walsh of the culture war. That's who my son is," he said, referring to the child abduction victim whose case was used to create a wide range of amber alert and other programs to protect children.

He said he has a wake-up call over the anti-Christian agenda of public education. And he has some goals.

"I want to hold schools accountable for what they're teaching our kids. This was malpractice," he said.

Dawkins, considered one of the world's most outspoken atheists, is a professor in the United Kingdom. He came to prominence in 1976 with his book "The Selfish Gene," promoting evolution.