Your communication is going to end earlier than you think.You're in way over your head
Those threats are federal felonies:
18 U.S. Code § 875: Interstate Communications
(c) Whoever transmits in interstate or foreign commerce any communication containing any threat to kidnap any person or any threat to injure the person of another, shall be fined under this title or imprisoned not more than five years, or both.
https://www.law.cornell.edu/uscode/text/18/875