Jabari Bird

Boston Celtics guard Jabari Bird appeared in court Wednesday to face new charges that he threatened to murder his GF multiple times during a violent altercation back in September. As we previously reported ... Bird allegedly brutalized his GF at his Massachusetts apartment during a Sept. 7…

12:45 PM PT -- Bird released a statement apologizing for the incident, saying, "I'm taking some time away from the team as I deal with my legal and medical issues. I apologize to my family, the Celtics organization, my teammates, the fans and the NBA for the unnecessary distraction that I have…