It seems to me that the "controversy" over creation and evolution exists at several levels. There is one level at which claims and counter-claims are made—"The facts prove evolution. Millions of fossils can't be wrong" versus "Creation is true." There is another level at which the facts reside. And there is a third "research" level, at which research can be conducted to try to determine the facts.
Some have decided to look at the evidence, rather than deal with the issue at the level of claims and counter-claims. In looking at the evidence, several people have been struck by the paucity—some would call it absolute lack—of evidence supporting evolution. Yet on the other hand, others have claimed that evolution is supported by much evidence.
Among those struck by the lack of evidence are some noteworthy examples. Dr. Gary Parker is one. He once wrote biology textbooks which were used in many schools and which taught evolution. However, when he began to learn more about evolution, he began to believe less and less in it until he finally became a creationist! And this, remember, is after he examined the evidence of—or lack thereof—more closely.