No experience with that, but I'm very sympathetic with your situation and think you did what was needed during the incident, though the police officer's response was one of questionable value.

The kind of entertainment the boy has at his disposal is fueling negative emotions, in my view. It's important for his psyche; that's why he was so enraged when you took it away from him.

Repeat:
The images he looks at and the violence of games he might be playing feed an emptiness that he is trying to satisfy by the violent entertainment. All images that promote an interest in violence should be removed from his room and from the home. It's too easy for a patient to assume the role of the violent character in the images he looks at.

Something is wrong with your son's sense of self-esteem. Therapy could
help with that.

His problem can exacerbate an episode for you since you have bipolar, too. You need to have a calm, quiet atmosphere in your home for the whole family.

Where is the father,too, as part of the role of disciplinarian in the family? This child will be 18 soon. He needs to know that he can be removed from the home permanently unless he cleans up his act. Your daughter's welfare is being compromised by having this behavior to try to comprehend. Who knows when his violence might explode and really hurt somebody? You're already defending yourself against his tirades.