Friends son just passed away in a car accident

My friend’s 22 year old son was involved in a car accident and passed away today from the injuries. I’m at a loss on what to do or say. I want to do something for him and his family but have no idea what to do or say. Our whole neighborhood is rallying around and doing the meal train and that kind of stuff but I want to help him somehow. Any suggestions on what I could do other than be there for him?