Like many of the shootings analysis suggests that many of the attacks could have been prevented. Many of the attackers had a history of violent, threatening, and other concerning behavior; prior contact with law enforcement; instability in the home; access to and inappropriate interest in weapons; or issues related to psychological, emotional, or behavioral factors. While every situation is unique and should be treated as such, one common factor across all of these tragedies is that there appears to have been an opportunity to identify and intervene with the attacker before violence occurred. This is a lot of information. Who should be responsible for compiling, aggregating, and distributing this information? Then what?