AUSTIN, Texas — The lessons from Robb Elementary have now been written into law. After the 77-minute wait to stop the shooter, a new law now standardizes active shooter procedures and protocols, changing how schools and police respond in a crisis.

Active shooter reports recently hit the University of Tennessee, Villanova University, the University of South Carolina, and the University of Arkansas.

The calls seem to follow a script – a panicked and shaky caller says they are hiding in a college library, sometimes with the staccato of taped gunshots in the background.

WILMINGTON, N.C. (WECT) - Many students today are feeling the impact of law enforcement swarming the UNCW campus Thursday night, placing the college under lockdown after receiving unconfirmed reports of an active shooter. Officials later gave the all-clear, saying it was a false alarm and that there was no active shooter.