I think the most convining evidence that bigfoot could exist is the hair sample. Some bigfoot hunters were out one night trying to film a bigfoot. All they got was some audio but they did find some hair. They had the hair tested and it was from an unknown primate. I think they might have had a hand print on their truck too. I don't remember it that well, it was from a documentary.
But anyways, I think its exciting to find hair from an unknown primate. There was
something out there and we don't know what it was.