Authorities say that 10 are dead and tens injured when an active killer opened fire at Umpqua Community College in southern Oregon today. The killer has been “neutralized” by police, according to state Attorney General Ellen Rosenblum. Beyond that, the killer’s status is unclear at the moment.

A radius of 1.5 miles around the sprawling campus was evacuated as police searched for the killer. But according to Fire Marshall Ray Shoufler, the shooting was confined to a single classroom.

Calls poured into dispatch at approximately 10:30 a.m. this morning. Six agencies—the Douglas County Sheriff’s Department, Oregon State Police, Bureau of Land Management officers as well as police officers from Roseburg, Sutherlin, and Winston — responded to the scene.

A nursing student at UCC, Jared Norman told The (Roseburg) News-Review that he heard shots “and then everyone was running.”

He was initially locked down in a cafeteria with 50 other students. “They’ve heard there is a shooting, but they don’t know what’s going on. And they’re scared,” he said.

“We locked our door and I went out to lock up the rest rooms and could hear four shots from the front of campus,” UCC Foundation Executive Director Dennis O’Neill told the newspaper.

Faculty and students were bussed to the Douglas County Fairgrounds.

Click here for the News-Review’s excellent breaking coverage of this event.

Although it appears to have been ended swiftly by law enforcement, the damage that can be wreaked by a single motivated killer in a crowded area is heart-wrenching. Our condolences to all who suffered through this.

Remember: As a police officer–no matter who or where you are–you might be the line between the killer and further carnage. Have a plan. Train with surrounding agencies. Be prepared to self-rescue: Carry a tourniquet and know how to use it. Be vigilant: Always carry enough ammo to last the ordeal and never wear your uniform without your vest.

Stay sane and stay safe.