Boulder Shooting Suspect Seen Handcuffed by Police in Video, Leg Covered in Blood

Video footage showed a bloodied suspect from the King Soopers supermarket shooting in Boulder, Colorado, on Monday, being escorted from the scene in handcuffs by police.

The mass shooting left 10 people dead, including one police officer, named as 51-year-old Eric Talley by Boulder Police Chief Maris Herold. Talley was an 11-year old veteran of the Boulder Police force and was the first officer to respond to the shooting, Herold said. He was a father of seven, according to Talley's father.

Police said the gunman, who wasn't identified publicly, was injured in the violence, but they did not provide any more information. Police haven't yet released information about how the shooter acquired the gun.

Video footage from a CBS affiliate at the scene shows a shirtless bearded man with dark hair, wearing boxer shorts and no shoes, being led away from the store in handcuffs, before being put on a stretcher and into an ambulance. The suspect was limping as he walked with a bloodied leg before being taken into custody.

Police have given no known motive for the violence, which unfolded at about 3 p.m. at the grocery store in the Table Mesa area of Boulder, 28 miles (45 kilometers) northwest of Denver.

Footage on social media shows another man being held against the wall by the police shortly after the first man is taken by officers.

Twitter user Railburn, who posted footage of the incident on the social media site, wrote: "1 Hour in to the Boulder Colorado King Soopers shooting, two men are taken from the store, one in cuffs and a bloody leg, and another man without cuffs seem to be escorted off scene. This was before discovery of the 'suspect in SUV'. #BoulderColorado #kingSoopers"

The incident began on Monday afternoon after police initially notified the public about an "active shooter" situation and instructed people to keep away from the grocery store's vicinity.

In a video acquired by ABC News, Boulder police officers can be heard instructing the shooter to "surrender" and discard any weapons before approaching law enforcement. The news outlet posted the clip on social media about an hour after reports of the incident first surfaced.

"The entire building is surrounded," an officer says in ABC News' video, while footage shows police cars parked outside King Soopers.

"You need to surrender," the officer continues. "Come out with your hands up, unarmed. This is the Boulder Police Department."

Sarah Moonshadow, 42, a customer and Boulder resident who was in the store with her son, Nicholas, told Reuters: "We were at the checkout, and shots just started going off. And I said, 'Nicholas get down.' And Nicholas ducked. And we just started listening and there, just repetitive shots ... and I just said, 'Nicholas, run.'"

Witnesses said that it sounded like the gunshots came from the checkout of the store.

Newsweek has contacted Boulder Police Department for comment.

The Boulder incident marks the second mass shooting in America in a week. On March 16, multiple shootings in Atlanta left eight people dead, including six Asian women, at three day spas in and around the city. A 21-year-old male suspect has been charged with those killings.