Got a call from this number for Warren Jones for owner of my cell number and the male claimed to be a agent Kevin Smith (with a mexican accent) Federal Crimes and Investigation Unit.  Threatening Voicemail left saying if he didn't call back it would be the worst nightmare of his life.  I am contacting the authorities and reporting this threat.  I called the number back and told him I was going to report the threatening voicemail to the police and he said "I don't [***] care".

This guy by the name of kevin smith is a scam artists he wants to take your money do not give him any info of yours even if he reads it out to you tell him he has the wrong info and you call back and hang up as many times as it takes to stop him I also sent him a mass text bomb of 2, 000 text and dam was he pissed

I received a call from a Kevin Smith who said he was from The Federal Crimes and Investigation Unit.  He had the last 4 digits of my social security number and my job telephone number.  He stated that if I didn't call back, It would be the worst nightmare of my life.  

How do you stop these kinds of calls and what can be done about this?

I got the same call, threats and all why is our government agencies not stoping these ppl

got the same call from the same guy....threatening comments but he had some of the info wrong....how can i stop this ??