The model is to go silent for at least a day, depending on the scope of the tragedy.
July 20, 2012, Aurora, Colorado, Theater Shooting: 10 Days Without Tweeting
Aug. 5, 2012, Sikh Temple Shooting: One Day Without Tweeting
Dec. 11, 2012, Clackamas Town Center Shooting: One Day Without Tweeting
Dec. 14, 2012, Sandy Hook Elementary School Shooting: Four Days Without Tweeting
