What is the ruling on one who dies in a car accident while drinking alcohol, and how can one seek forgiveness for him?

Drinking alcohol is Islamically forbidden. If a Muslim dies while insisting on drinking it, or dies while intoxicated, they are to be washed, shrouded, prayed over, and forgiveness sought for them. This is because they died as a disobedient person, not as a disbeliever. The Sharia has commanded us to seek forgiveness for all believers. Some scholars dislike people of virtue praying over those who committed grave sins, as a deterrent, unless there is a fear of them being neglected. Anyone who outwardly professes Islam is subject to the outward rulings of Islam.