Instead, those details were amassed by a team of reporters from The Associated Press and the USA TODAY Network. The news organizations teamed up to analyze information gathered by the Gun Violence Archive, a nonprofit that is trying to capture details about every shooting in America. They counted shootings that were declared accidental or unintentional by investigating agencies. They were tallied primarily from the Gun Violence Archive, where researchers track media, government and commercial sources to compile a comprehensive database of gun incidents. The review also uncovered a handful of shootings that had not previously been made public.