Well, This doesn't prove if he's or not, Every people can turn to scam,and they can be protected like you that defending him. Tell me one thing why publishers lost their funds on the website that cost more than 10 BTC.(do not say mysql error like you reading above).
P.S also I didn't blame him, Just said my opinion that I know how Mysql Works.
Clearly you don't know how it works. Else you would have known that MySQL databases can be corrupted by restarts and that Carlos' story is correct. Doesn't mean it's what really happened, but I believe him right now and doubt that he would scam for such an amount.
I mean there auto backups every day on mysql database from the server.(or if he were using a chinese server)
Do not hate me, Hate the scammers.
Cya.