SInce the child was not born the putative father is irrelevant. Stay away from him and his wife. Hopefully by not responding they will stop. If they do not stop, then consider an order of protection. Consult with a local family law attorney.
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I think I'd worry more about getting mugged in Brooklyn than I would about being sued by this turkey. Forget about it. If and when you get sued, then repost with specific questions. He's barking. Wait until he bites. But having said all this, MAKE SURE you have no further contact with him or his wife. If you have any further contact with them, you will be asking for trouble. Good luck!
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