Brother's/Son's passing

My children's brother(step) has unexpectedly passed away due to a car accident. They, their father, (step)mother & younger siblings need prayers of strength, courage, and comfort for the very sad journey ahead of them. Can you please help with that? Also can you include the family that was also involved? It was a mother & her 4 children. I pray they each make a full recovery and have no long lasting trauma from this horrible event. Thank you very much!