San Bernardino Mass Shooting - What We Know

Emergency vehicles converge at the scene of a mass shooting at the Inland Regional Center in San Bernardino on Wednesday, Dec. 2, 2015. (KABC)

Here is what we know about the mass shooting at an Inland Regional Center building in San Bernardino on Wednesday, Dec. 2, 2015.

  • President Barack Obama addressed the nation Sunday on the San Bernardino terror attack, declaring that "the threat from terrorism is real, but we will overcome it."

  • San Bernardino police identified Syed Rizwan Farook, 28, and Tashfeen Malik, 29, as the suspects in the mass shooting.

  • The two were married in Riverside on Aug. 16, 2015, according to marriage certificate. The couple had a 6-month-old daughter.

  • 14 people were killed, 21 injured - San Bernardino police confirm.

  • FBI says suspects participated in target practice leading up to the shooting.

  • Both suspects were radicalized and have been for "quite some time," FBI says. Investigators are still trying to figure out details on how they were radicalized.

  • Enrique Marquez, an old neighbor of the shooting suspects, purportedly purchased the "assault-style" rifles used in the massacre, according to law enforcement officials.

  • FBI is investigating the mass shooting as an act of terrorism.

  • Malik pledged allegiance to ISIS on Facebook using alias then deleted messages before the attacks, U.S. official says.

  • ISIS called the shooters "supporters" of their Islamist cause, but have not claimed responsibility for the attack.

  • Farook was an American citizen, while Malik was in the U.S. on a Pakistani passport and had a K1 "Fiance" Visa. She later obtained a Green Card, the FBI says.

  • The San Bernardino County Coroner's office released the names of all victims killed in the shooting.

  • Suspects fired between 65 to 75 rounds during shooting at Inland Regional Center.

  • 3 pipe bomb-style devices were found at the scene of the attack. The devices were remote detonated devices, law enforcement sources tell ABC News.

  • The guns that were used in San Bernardino shooting were purchased legally, law enforcement sources tell ABC News

  • Shooters attempted to destroy evidence, including crushing two cellphones and discarding them in a trash can.

  • Officers said they are "reasonably confident" there were only two suspects involved in the mass shooting. No other suspects were arrested.

  • Authorities found tools for making explosives like pipe bombs, over 3,000 rounds of ammunition at the suspects' Redlands home.

  • The two suspects were listed on home's rental agreement. Landlord Doyle Miller said the couple lived at the apartment unit since May.

  • Following their search, FBI turned over property back to landlord, who let the media inside.

  • Farook graduated from California State University, San Bernardino in 2010 with a bachelor's degree in environmental health, according to CSUSB spokesman Joe Gutierrez.

  • Farook and Malik were killed in a massive shootout with police a mile south of the IRC building. San Bernardino police were chasing a dark SUV before the incident ended in gunfire.

  • Law enforcement fired 380 rounds at the two suspects at end of that chase; suspects fired 76 rifle rounds, but had an additional 1,400 rounds on them.

  • SUV involved in chase was rented by one of the suspects three to four days ago

  • Two officers were injured - one shot in the leg, one wounded by glass or shrapnel. Both injuries were not life-threatening.

  • Inland Regional Center is comprised of three buildings. The shooting occurred in the building with the main auditorium during a holiday luncheon for the San Bernardino County Health Department.

  • Approximately 550 people typically work at the Inland Regional Center on an average day, a regional center employee told Eyewitness News.

  • FBI is the lead agency in the investigation. Anyone with credible information regarding mass shooting should call the FBI at (800) CALL-FBI.

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