If someone calls you named Johnathon Li or Johnathon McCoy and says you owe irs money and is going to send Marshalls to your home is a fake. If he is demands the money right away. This is a fake person
I received one call and told Mr Li to send me the information by mail and to not call again. Two hours later he called again waving a message saying that the IRS had a criminal case against me and if not settled would be sending the sheriffs marshals to arrest me!
The same thing happened to me today. On the first message, the caller left a message saying that his name was Jonathan Lee. On the second message it was the same caller, but he claimed his name was Sam Rodriguez and he was from the IRS criminal division.