Dex McCallum has been in prison for forty years, convicted of indo killing Lana's great.
Meanwhile, Lex is discussing his grandparent's death with Officer Mason, the man who led the original investigation.
Lana shows Clark the picture, saying that it might have hunter been his grandfather or even his father.
Hiram Kent is the 13th DC Comics character adapted into the series.
He has a picture that was sketched from his description and smallville season 3 episode 6 published in the newspaper.