. >>> david archuletta. ♪ whenever you're feeling lonely ♪ >> a breakout star on "american idol," nowf the world's most famous mormons is opening up. >> have you left the church? >> i've taken a step away. >> how he struggled with coming out and his crisis of faith. out of his darkest moments -- >> don't be afraid of something just because it's different from you. ndou yo menof fiour potential support your immune system with a potent blend of nutrients and emerge your best every day with emergen-c ♪ >>> good evening. thank you for joining us. tonight as we gather to give thanks, another community traumatized by gun violence. this time, a mass shooting at a virginia walmart. six killed and more than a half dozen injured. it comes days after the nightclub shooting in colorado springs and after three university of virginia football players were fatally shot just a few hours away. and this sobering statistic. more than 600 mass shootings in america so far this year. here's abc's jane o'brien. >> he did not say a word. literally just put the gun up and started shooting aimlessly at everyth