And there I was thinking that a madman shooting people is the common thread that runs through most mass shootings. Apparently not. Not according to Josh Sugarman, Executive Director of the Violence Policy Center, writing for his HuffPo homies. “High-capacity ammunition magazines are the common thread that runs through most mass shootings: giving attackers the ability to fire numerous bullets without reloading. Last week’s attack in Arizona joins a long list of mass shootings made possible by the easy availability of high-capacity ammunition magazines: Columbine, Virginia Tech, Luby’s, Stockton, and all too many others.” We then get a slide show of 10 mass shootings with [supposed] high capacity mags, without a definition of the term. Assault weapon much?