Ten people were killed Saturday at a supermarket in Buffalo, New York, authorities said. Three others were wounded and are expected to survive.

Police said the suspected shooter was wearing tactical gear when he approached the Tops Market and began shooting people in the parking lot before entering the store.

A security guard shot the 18-year-old, but authorities said it hit him in the tactical gear. The security guard was killed when the shooter returned fire, police said.

Authorities said Buffalo police quickly responded to the grocery store and talked the suspect into dropping his gun before surrendering.... Read More: WMAR2NEWS