Not to sound preachy-- but the best way to honor the memory of this family is to think about this story when you or someone you're with may have had one too many after work or on the weekend, and call a cab...
Yep, that's the only possible "good" that can come from this. That hopefully some people will realize the dangers of drinking and driving if they haven't already and they'll be considerate of the lives of others and call a freakin' cab.