zhoutong may be thief or not, but those (AurumExchange) who fingered/accused zhoutong as thief, so far NOT done/doing anything legally & just watching how forum members get angry, shouting, scolding zhoutong.
The main issue is that this had been brought publicly on this very forum before by Zhou Tong himself, complaining his funds were stuck with AurumXchange.
In that kind of case, the only thing a company can do is to release a statement explaining what happened.
Without blaming anyone, I would like to suggest a better way to handle similar situations in the future:
Release about half of the information to the suspect privately, and give him 12 hours to explain himself. This way you can use his explanation to check against the other half of the evidence, to determine whether it's a made up story or plausible truth.
After 12 hours, post the full evidence alongside with the explanation in public. It also protects privacy and encourages the community to act in a neutral manner.