Meet the technology that is changing school security

"I can say that this system was a great asset as the school was placed in lockdown by me when we realized that the threat was heading in the direction of the school," Casaletto said. No danger ever reached the school and the suspect was arrested later that night.

This system, Share911, can be found in hundreds of schools nationwide, including 79 buildings in Monmouth and Ocean counties. It was developed by OnScene Technologies Inc., a Ramsey, N.J.-based start-up led by Adrian Lanning, a developer who built the program, Ray Bailey, a former deputy police chief, and Erik Endress, a 30-year volunteer firefighter.