Students hold their hands in the air as they are evacuated by police from Marjory Stoneman Douglas High School in Parkland, Fla. AP A Junior ROTC student jumped into action when he heard the gunfire – ...

Colton Haab heard seven gunshots, and his Junior ROTC training kicked in. The 17-year-old junior knew a gunman was on his high school campus Wednesday afternoon so he ushered 60 to 70 people to ...

Colton Haab, Junior ROTC member and 17-year-old student, protected his fellow classmates with sheets of Kevlar during Wednesday’s school shooting in Florida. Kevlar is an industrial material used in ...

PARKLAND, Fla. — Students, parents and neighbors stopped by to pay their respects as investigators continue to work the crime scene after a shooting at Marjory Stoneman Douglas High School in Parkland ...

On Wednesday, 19-year-old former student and one-time Army Junior ROTC member Nikolas Cruz sent students scrambling in terror when he opened fire on Marjory Stoneman ...

The new material is only 1.8 millimeters thick, combining carbon nanotubes with aramid polymers, the latter of which are also ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Body armor has a clear purpose: to prevent a bullet, or perhaps a ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. (CNN) — Colton Haab heard seven gunshots, ...