ISIS has claimed that the killer was acting under their direction in some manner. I don't know what kind of help he had or if he was an insane lone wolf. I think our country's policy should be that if you attack or threaten one American that you attack or threaten all of us. Our response should be swift justice to any person or group that supports this type of evil action. We invite more massacres from evil people and groups if we do not act to punish those that perpetrate and support evil.
Containment of ISIS does not seem to be working. At the very least, lone wolf attacks that are inspired by ISIS can strike the mainland of the United States. In the land controlled by ISIS anyone that does not obey their evil perverted religion is brutally murdered. The time to take direct strong direct military action is overdue.
Large gatherings of people need to have trained armed security. I recommend any large public gathering over 100 people have at least a trained sniper and a K-9 unit. Larger gatherings need additional security. Schools need an armed guard and a K-9 unit. This is reality in 2016.
We already have sufficient gun control laws for common sense purposes and these laws should be enforced fairly. Criminals and terrorists do not obey laws. Law abiding rational citizens should not be penalized because of the actions of insane people.