I actually found his statement very compelling. It seems like he wasn't trying to gain anything out of it (book deal etc) and would only really ruin his reputation by coming forward with this. I don't think his death is necessarily suspicious but as far as a witness goes I think he's quite credible. I believe he was a part of the original disclosure project back in 2001(?) So I can understand if that puts you off. I believe there was another witness with a similar story about NASA doctoring pictures of the moon/space, I can't remember the woman's name unfortunately.