Your son was broadsided? I'm sorry for this tragic occurence. But the fact you said 'intersection accident' caught my attention. Thereby, in your own words, you showed it was NOT speed that caused the accident, but the fault of either your son or the other driver's lack of attention. Speeding does not cause accidents. At worse, it aggravates a situation already in place. In proof, look at the Autobahn. There is a specific lane where if you ARE slower traffic and don't move to it, they fine you. There are hardly any wrecks on the Autobahn because driver's obey laws and signs in place. Their speed is not a factor.