We all know exactly which laws and policies need to be put in place in order to stop these tragedies from happening. MOST countries in the world have them, and America has the highest level of violent gun crime/mass shootings in the world without them.
EVERYBODY in the United States knows exactly what they need to support and who they need to vote for in order to prevent tragedies like this from happening again. The majority of them just CHOOSE not to. Year after year, decade after decade, election after fucking blood red election.