In Ma, What Can I Do About Theft When Being Blackmailed About Something Else?

I'm honestly scared to be specific on a public post, but in general- can someone steal from someone and say they will call police about another matter and get away with that? Or is there any crime forgiveness for the person being blackmailed if no person was injured or anything from the crime? (No murder, assault, rape, etc)
I would be more specific in a DM, or if you have any questions feel free to ask below, I just am scared to death right now.
Edit: I want to report the ATM withdrawals as fraud so they can see the videos and return my money but I'm so scared to identify the person in the video.
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