Someone has made repeated physical threats (essentially, that they will beat me up) in multiple FB discussions. This person presents themselves under their real identity (is not a troll with a fake name) and I know that because we used to be friends and still have mutual friends. We live in different US states but the threats, of which I have screenshots, were made in a different language though I am sure it can easily be certifiably translated.
Can I report these threats to a law enforcement agency and which agency should it be, considering we live in different jurisdictions?