Mass shooting in San Bernadino CA

Number of dead: 14.
Number of wounded: Police updated the number of wounded to 21.

Number of officers who responded: About 300 officers from local, county, state and federal agencies responded to the initial active-shooter component.

Number of rounds fired at Inland Regional Center: The shooters fired between 65 and 75 rounds from their rifles. A pipe bomb — actually three pipe bombs combined into one with a remote-controlled device — also was found. There also were four high-capacity .223 rifle magazines that were dropped by the suspects and left in the building.

"Somehow, it was three pipe bombs that were attached together, somehow attached to this remote-controlled car, and it was designed that the remote-controlled device would somehow trigger or set that device off. We don't know if they attempted to do that and it failed, or what the story is," Burguan said.

The bomb was found in a bag at the scene.

What they suspects wore: They had black tactical gear — not ballistic bulletproof vests — that held equipment, magazines and ammunition.

At the shootout with police: Seven police agencies were involved, and 23 officers fired weapons in the final gun battle. "Law enforcement fired approximately 380 rounds at the suspects. Both of them were killed here at the scene. The suspects are believed to have fired about 76 rifle rounds at the officers at the termination of the pursuit," Burguan said. On their bodies and in the vehicle, there were more than 1,400 .223 caliber rounds and over 200 9 mm rounds.

On the gun battle: "It's my understanding that they [the suspects] opened fire first. Rounds came out of the back of the car from the female that was in the back, firing through the back of the SUV at the police vehicles. And then the male suspect, who was the driver, got out and fired at officers from the street as well," the chief said.

Their weapons: The suspects had two .223 assault-style rifles and two 9 mm pistols. The two handguns were purchased by the man, while the two rifles were not. All four guns were legally purchased, according to officials.

Injured officers: A San Bernardino police officer sustained a gunshot wound to his left leg; he was seen at a hospital and is expected to be released Thursday. A second deputy sustained cuts to his leg that likely came from broken glass or shrapnel.

The house in Redlands: There were 12 pipe-bomb-type devices found in the garage to that house. "There were also hundreds of tools, many of which could be used to construct IEDs or pipe bombs. In addition to that, they had other material to have produced some additional bombs as well," Burguan said. "There were another 2,000 9 mm rounds found at that house. Over 2,500 .223 rounds found at that house. … And then there were an additional several hundred .22 long rifle rounds that were found there."

Syed Rizwan Farook -- who along with his wife, Tashfeen Malik, carried out the San Bernardino shooting massacre -- apparently was radicalized and in touch with people being investigated by the FBI for international terrorism, law enforcement officials said Thursday.

Syed Farook, 28, a devout Muslim, stormed out of the festivities and later returned with his new wife, Tashfeen Malik, 27. Both wore dark tactical gear and masks while toting assault rifles and handguns, police said.

The murderous duo sprayed bullets inside a conference room, slaughtering colleagues who earlier this year had thrown a shower for their new baby.