Thought crime is real in the US. I think we all make concessions not to say things in emails, text messages and on the phone so we don't set off invisible tripwires the government has set. We do it almost unknowingly.

The statement this guy said is different. It's not sarcastic, it's ultra-violent and distressing. He's either a person completely devoid of morals and decency, mentally ill, or so angry he can't control what he thinks and says.

He needs to fully account for what he said/threatened.