Why use evidence so far removed from the source? A says B says C wrote that D did this. Go straight to C wrote that D did this.
Did Darwin repent? Did he become a believer in God, or a Christian? The answer to both questions is a resounding no. Creationists and Christians do themselves no favor by circulating, even if inadvertently through good intentions, stories such as these that ultimately are without foundation. When the truth finally does come out (and eventually it will!), it reflects poorly on those who propagate such falsehoods.
I'm not sure the conclusions expressed in the first sentence can be reached, but the link provides enough to "reasonably" exclude a deathbed conversion(or reaffirmation).