Is there anything I can do that will help with my case?

Yes, you can start thinking about what documents, evidence, phone records, recordings, or witnesses might help with your defense, and make a list of those things for your lawyer. It is best if you provide this information to your lawyer directly instead of trying to contact the witnesses yourself. Your lawyer will help you gather these materials in a way that helps to make sure that they are admissible and persuasive in court and will hire an investigator to help you if needed.