I'm really sick of the sacks of shit ITT who are BLAMING the people who got their coins stolen.
OP: between the emails you have and the deposit (and maybe cashout) address(s) you have, you can def start doing some detective work. I'd suggest everyone who got stolen from get together, pool their information, and maybe hire some sort of bitcoin forensic accountant. The quicker you get organized, the more likely you'll be able to track the thieves down and hopefully get some restitution in the form of legal measures. Best of luck.