peter came to rome to lay the foundations of the christian church is not in the bible. now, can scientific testing of peter's relics reveal new truths about the life of the first disciple, his role in the formation of the christian church in rome, and help tell us if the bones discovered beneath st. peter basilica are really his? the gospels tell us that peter is a fisherman on the sea of galilee. >> he's one of the few apostles that we have some hints about his home life, so we know that he's married. he has a mother-in-law whom he might be financially responsible for. according to some traditions, he also has children. >> he's a big guy.