How can i help my nephew deal with the death of his parents?

Best way to help: Be open to his questions, let him know you are supportive. His concerns may be different than his. Talk in general ways about how you are coping with this but do not overwhelm him. Take him to a suuport group for children who lost their parents, consider finding a counselor. Find a good family therapist who can give you advice on what to look for.