The more I become convinced that there just isn't anything we could have done period. It's a horrible horrible tragedy, but I've changed my mind about the FBI, it sounds like they did their job, they did all they legally could and this guy came up clean every time. He would have gotten those guns even with more gun control. Gun control would not have stopped him. Even the ridiculous ideas like barring Muslims from entering the country. The guy was born in New York. He had no solid connections to terrorism, etc.
Everyone wants to blame something or someone but it's looking like there just wasn't anything that could have been done.