Jason Alexander doing a TwitLonger on the Aurora theatre shooting:
What purpose does an AR-15 serve to a sportsman that a more standard hunting rifle does not serve? Let's see - does it fire more rounds without reload? Yes. Does it fire farther and more accurately? Yes. Does it accommodate a more lethal payload? Yes. So basically, the purpose of an assault style weapon is to kill more stuff, more fully, faster and from further away. To achieve maximum lethality.