Good news brother IbnTamiyah. Now, it is the time to sit down and reflect on those cases. My advice to you is you need to stay away from certain groups if you have been around gangs, learn how to control your anger, and avoid attacking unless it is a self defense. There are certain battles that you shouldn't fight. Many times you may want to just walk away from it, and remember it is not cowardice to walk away from certain senseless fist fights.
You should also know courts know your name now, and even tough this case is dismissed, if you keep having issues, next time you will be seriously judged as someone with issues that is danger to society. Think about that now!
Good luck and glad that they didn't have an evidence on you.
