Innocent, normal thinking people generally don’t take themselves out if they’ve been falsely accused.
Suicide is not an admission of guilt. In fact he may have derived certain benefits by not being tried. Look at the Aaron Hernandez case. Because he was not tried and found guilty will his record as a Olympic and National coach remain unsullied? Was his record more important than his life? Who knows. Will his estate remain intact? Will his family inherit more this way? Even had he won in court, his legal fees would have crushed him. As I said suicide may have been his best option guilty or not.