The Prosecutor in my upcoming trial has made a public "Death Threat" against me and has obviously taken my case very personally.
What and how should I do about this?
I would STRONGLY advise you to not say another word in public--anything you say can and will be used against you!
If you are involved in a criminal case, you have an attorney (either your own or a court-appointed lawyer) who is probably well aware of the proscecutor's statements. Talk to that attorney about your concerns and let him deal with them.