The model is to go silent for at least a day, depending on the scope of the tragedy.
July 20th Aurora Colorado Theater Shooting: Ten Days Without Tweeting
August 5th Sikh Temple Shooting: One Day Without Tweeting
December 11th Clackamas Town Center Shooting: One Day Without Tweeting
December 14th Sandy Hook Elementary School Shooting: Three Days (And Counting) Without Tweeting
