This guy keep calling  house and cellphone threating me about what is going to do to me. I ask him for paper work about the debt and he got loud talking over me. He then started calling me names and the sound of his voice louder until I decided to end the call.

Dont listen to this guy. He's a scam. He calls people trying to insult them and harass them and get them to write him a check for whatever amount of money. HE HAS NO AUTHORITY. HE CAN NOT GET YOU IN TROUBLE IN ANY WAY, SHAPE, OR FORM.

MONEY INVESTIGATIONS IS A SCAM, AND A HORRIBLE ONE AT THAT!!

this OLD MAN is a effing NUTT!...... you get nothing for calling, "is ____ there?" no last name, and when asked he responds, doesn't matter!"..... he's DUMB and then THREATENS with calling local authorities,...... CALL them you idiot, but UNTIL you submit something in WRITING, you will NOT get anywhere!......So once again, GO ______ yourself, you'd get more pleasure!.........................
Respect the law yourself:........The Federal Trade Commission (FTC), the nation’s consumer protection agency, enforces the Fair Debt Collection Practices Act (FDCPA), which prohibits debt collectors from using abusive, unfair, or deceptive practices to collect from you....
Take note to the law Mr. AR Money Investigations Hayes!

Very rude man. I hung up on him and called back. Demanding that I know a Felicia Williams or Richardson. When I told him I did not know this person. He said oh really. Like I was lying to him. [***] kept asking me about this Felicia person from Allendale again I said I don't know this person. I told him this was Columbia/Hopkins SC. Then he kept insisting I know this person and she gave my name and number.  Then this fool asked me how long I've been living at my address.Then I lost it. I start giving just what he was giving me. I started yelling back at him and threaten the better business bureau.

I got the same message yesterday, telling me that I need to talk with my neighbor, Mary ______. He was extremely rude when I called him back, telling me I have no right asking him what his purpose was.