boston brady campaign prevent gun violence say friday sharply cut back online ad use name face mass shooters urge news media identify group draw criticism gun control activists group name former white house spokesman jam brady wound 1981 gunman try assassinate then-president ronald reagan roll zero minutes fame campaign early week goal group say promote research show mass shooters carry 2012 attack newtown connecticut aurora colorado study past gun attack carry prominent use name image adam lanza shoot dead 20 children six educators newtown elementary school jam holmes fatally shoot 12 people aurora movie theater two-minute online spot anger fellow anti-gun-violence campaigners brady campaign 's ad prompt petition chn.ge/1scfovp activist website change.org call ad take 93 people sign petition midday friday hurtful many gun violence victims survivors say anita busch los angeles-based entertainment journalist whose cousin slay aurora massacre say post petition brady campaign get shock honestly ad mark launch piece software google googl.o chrome web browser promise remove name image serial killers news account google web search replace name withhold respect victims brady campaign one prominent u.s. gun control organizations say friday cut back ad content complaints 14-second version ad view friday feature name image mass shooters video mean educate broad american public prevent gun violence upset hard hit dan gross group president say e-mail statement take matter seriously hope step take fix satisfactory victim advocate jam brady survive 1981 attack go become prominent gun control activist die 2014. brady campaign 's ad draw ire u.s. anti-gun violence activists