I haven't read much of this thread (I like the tin foil hat guy) but it seems to me the majority of these tragic shootings are done by pre 21 year old adolescents, I don't know if it would really be effective to increase the age of gun ownership in some form but it hasn't hurt to limit handgun ownership to 21 and why not make the group responsible liable for there actions? Maby an additional prohibition on specific types of weapons until 21? We seem to be raising the age to be able to drive and smoke (tobbaco) in many places. It is probably a sign of the poor quality of our parenthood but may not be a bad move. Kids today commonly raise themselves with both parents working to pay taxes and exorbinant cost of modern living in society after mother's went to work.