First of all, the assumption must be made that these people have insurance - or, even drivers' licenses. Even if they do, the concept of insurance is that a group of people share the costs of damages. Where is the justice in a group of people sharing the costs for this type of behavior??? Insurance companies are not a faceless piggyback, the are made up of people, you and me, sharing the financial impact of ACCIDENTS.
And with a few pics of license plates and perpetrators, plus 911 on the line....the OTHER guy's insurance would be paying for any damage. And his insurance rates would go up. And you might get other damages out of it. Is killing someone better than higher insurance rates?