Its common for people like us (meaning that I have a BB in Ju Jitsu as well and we may be more aggressive than some) to feel the desire to hurt someone when we are hurt, especially so deeply. I can't imagine what you must be dealting with but my heart is with you man. Sometimes it seems like our desire to distribute our pain to others that seem more appropriate, such as the drunk drivers whose irresponsibility may have caused this incident, can come from how we think about the way justice is supposed to work in this world. My heart goes out to you and those who lost loved ones!