Giffords, the former congresswoman who was left partially blind and struggling to talk in a January 2011 shooting that killed six other people in Arizona, tried to reach people like Turner in a recent ad campaign promoting extended background checks.

NPR: US Arms Control Advocates Must Show They Like Guns

HPS2-THRIVE randomized 25, 673 high-risk patients who could tolerate niacin to either placebo or extended-release niacin plus laropiprant (Tredaptive, Merck), an anti-flushing agent, in addition to background therapy.

FORBES: HPS2-THRIVE: A 'Disappointing But Clear' Result