Not directly, no. The death would be a result of physical impact. Marijuana doesn't tend to make people drift off to sleep like alcohol does, so this isn't likely. Regardless, if you think such an incident would indicate that people have died as a direct result of marijuana, then you must think that marijuana's danger is in the class of that of sleepiness, which certainly does cause people to drive into stationary objects and die. Would you say that anyone has ever died as a direct result of being sleepy?

Remember that alcohol kills people directly, without the aid of cars. The ratio of effective dose to lethal dose of alcohol is small. There is no lethal dose of the psychoactive components of the cannabis plant.