How do the lives of Billy Graham and Charles Templeton differ?

Strobel begins his book by looking at the dual lives and friendship of famed evangelist Reverend William “Billy” Graham and evangelist-turned-agnostic, Charles Templeton. Graham remains a committed Christian through his old age, However, Templeton fell away from the faith after being overcome by doubts about God and faith itself when he saw a photograph of a mother holding her dead child in a drought-stricken area of Africa. Templeton could not equate a loving God with such a situation. Therefore, he left Christianity.