Criminal

What are my legal responsibilities for reporting threats from my boss?
My boss spoke of desiring to kill his old boss, graphically describing it. He spoke of killing a couple of people in the corporate office and in the same conversation said he was going to order a semi-automatic 308 gun. Later that same day he called the gun company and discussed ordering it. Because of this and other actions I became very afraid of him. I told the plant manager. He advised me to call the HR dept. But that was too frightening because my boss had told me no one had better call and tell anything about him. The plant manager called the HR dept. I was fired for telling the plant manager what my boss was doing. I was told that was insubordination. MY question is: what are my legal responsibilities about informing the company further about the dangers that this person poses to the remaining personnel.
What should I do about a blackmail threat from someone in Nigeria?
A person from Nigeria is threatening to post pictures to the internet if I do not send him $900 or arrange for a visa for him to enter the country.
Can I seal my child neglect record in Colorado after probation?
I was at the court for a deferred sentence after one year probation of child neglect but my record still child abuse, and my nursing assistant license is denied and I don't know what to do.
How can I appeal a Colorado parole hearing officer's decision?
IS THERE A FORM OR PROCESS TO APPEAL A COLORADO PAROLE HEARING OFFICERS DECISION ?
Can police question a minor at school without notifying parents in Wisconsin?
Is it legal for a police officer to question a minor on school grounds without notifying the parents in Wisconsin?