Here’s what helped thwart a potential Valentine’s Day school shooting in Indiana

A call to an anonymous tip line created after the 2012 shooting at Sandy Hook Elementary School in Newtown, Connecticut, set off a chain of events that helped thwart a potential Valentine’s Day mass shooting in Indiana, authorities say.

​ A call to an anonymous tip line created after the 2012 shooting at Sandy Hook Elementary School in Newtown, Connecticut, set off a chain of events that helped thwart a potential Valentine’s Day mass shooting in Indiana, authorities say. Read More Breaking News, Latest News and Videos | CNN