How to comfort those harassed by trolls?

Hi, my name is Priya. In one fandom I'm a part of a troll started drama for a year, including faking their death twice and planning to fake it a third time as part of a Halloween live stream. A few of my friends got badly hurt and bullied, and I for one am still fuming because I want revenge and to go Ender Wiggins on this person. How do I help the victims, and get past my anger?