Three shootings in just three days.
On Wednesday night, two women were shot to death at an Elkhardt, Indiana grocery store.
On Tuesday, two students were wounded when a 12-year-old allegedly entered his middle school with a sawed off shotgun and began shooting.
And Monday night, a father was shot to death at a movie theater for texting his daughter.
What's causing Americans to snap?
CNN's David Mattingly has our report.