how to find out if someone else took a Life Insurance on you illegally

Is there a way to find out if someone ( not parents) took a Life Insurance Policy on another adult (alive), for the purpose of claiming as beneficiary?

A year ago, I rent a room at an Insurance Agent’s house, during I was living there, they played “friends card”, they asked me signed something as witness, but they didn’t show me the whole policy documents, and they said that their son-in-law was purchasing insurance for their grand-sons, need witness signature. They have forced me into a “friendly” relationship which I always had a question of why, because their age could be my parents, I do not see them be my friends, plus the woman is an evil – she could do any possible cruel things to anybody, I have observed terrible things she capable and she did. I moved away from that whole city to be far from them.

This year I took life insurance license, I realize that Witness Signature could be the life insurance policy they took out on me, because I caught on mini-camera that woman was looking through my stuff in my room EVERY DAY when I left for work, she could absolutely stolen my medical records which was on my desk.

So I need to find it out that Life Policy I am The Insured by them, but I am not the policy holder who pays for it. Is there a way I can find out as an insured person? and I don’t know which company they insured me with.