O.K. the guy drives over 5 cyclists, then he takes off. He does not stop to offer aid or phone 911. I really don't care if he was drunk, stoned, using his phone/Blackberry or just stupid, this son of a 
should not be free for a very long time. It's about time people realize it's not open season on people who ride bikes.
Most accidents between adult cyclists and motorists in North America are the fault of the motorists. I believe an objective analysis of these accidents would find that prosecution of the motorists is rare and very conservative when it does follow. My personal experience, which is consistent with incidents other cyclists I know have reported, is that it is extremely difficult to get the police to take any action. They seem to believe that cyclists don't belong on the roads, and are a lawless group who deserve what they get. I could write a book citing examples of this.
So. like the Toronto motorist who opened his car door in front of a cyclist a year or two ago, resulting in the cyclist hitting the door, falling in front of an oncoming trucker, and being killed, my guess is that this motorist will get away without penalty.
This is in stark contrast to Europe, where given only what is known so far about this accident, there would be no question this motorist would be in very deep doo-doo. Life changing doo-doo. Except that in Europe, because motorists know they WILL get nailed if they hit a cyclist, the accident would have been unlikely to happen in the first place. Here, all someone has to do is casually mention that the cyclist swerved, to be excused for running down a cyclist. In a sense, it IS open season.
Let's see, I know three people who had been exceptional individuals who were practically destroyed physically and impaired mentally by being run down by motorists. At least one of those "accidents" was deliberate. The driver was never found. Another two cyclists I knew were simply killed by motorists. One was by a motorist experimenting with a car he was rebuilding. I don't recall any of the motorists suffering so much as a traffic ticket for any of these events.
In my own case of being struck from behind (while riding as mandated, on a bridge sidewalk!), the police would do nothing, so I successfully sued the driver.
Cycling in North America will remain stunted until the regulatory regime not only takes cyclists' rights seriously, but balances the scales by recognizing the greater destructive power weilded by the motorists.
