I purchased my ISO options in a startup that recently (publicly) shutdown, what can I do to get information about what happened?

No attempt was made to reach out to me or any of the other (ex-employee / non-investor) shareholders with information. As far as I know, the founders and executives may be absconding with money that could be returned to we shareholders.

Do I have any legal recourse? Does anyone have recommendations for an attorney or accountants that specialize in this sort of situation?