Based on what you have said, it would be wise to seek legal counsel in NJ to review your allegations and advise you. You can usually get a referral from your local bar association's Lawyer Referral Service. It sounds as if filing a police report would be wise, or going directly to the District Attorney's Office in your state and filing a complaint.
Information above is provided to help you get a better grasp of the questions you need answered. You are advised to seek legal advise directly from an attorney in your area who can review all the facts and the law locally and advise you.
You should go to your local police department and ask to speak with a detective. That officer will evaluate your case and contact the appropriate assit. prosecutor. There may be charges against the check cashing place too if the proofs are there. As far as a civil suit you would have to speak to an attorney who practices civil law. good luck.