Legal Research Group Called me every expletive when I started asking questions b/c I was skeptical Dallas Texas

Each time I called (3x total) he answered under a different name, first John then Gerri. He originally left me a voicemail under the guise that I was listed as an emergency contact for an uncle and to call him immediately.  Why I would be listed as an emergency contact in the first place was the first red flag. Once I called, he provided no details just wanted to confirm if I knew my uncle and I started to ask questions about what this issue was regarding and he promptly hung up. I called back a second time to get the name of the company, he told me Legal Research Group and said my uncle was going to jail so I didn't need to be involved but again, no details on what the matter was regarding and hung up on me again. I called a THIRD time and he said he had a heavy case load and I was starting to bother him. I told him if this was regarding a bill or collections, it was illegal for him to threaten arrest or jail and that was the law. He said he could tell me whatever he wanted to and it wasn'tregarding collections and how could I be related to a known felon...then he called me a stupid b***h and hung up. 

I'm not aware of my uncle having any criminal issues so this was another red flag and if this is a criminal matter, why is an out-of-state group like Legal Research involved? There are so many suspicious reg flags that go up. I will also be filling a report with the FCC and FTC regarding decpetion practices and threatening language. I hope this guy goes out of business and finds God or better yet, someone takes a steel wool sponge to his mouth for his poor attitude and language.