Tashfeen Malik and Syed Rizwan Farook shot and killed 14 people and injured 21 others at the Inland Regional Center in San Bernardino, California on Dec. 2, 2015, before being shot to death by police.
The married couple are seen as they arrive in Chicago on July 27, 2014. Farook, right, was a 28-year-old restaurant inspector born in the U.S. to a Pakistani family. Malik was a 29-year-old immigrant from Pakistan, who entered the U.S. on a fiancé visa.
A photo of Tashfeen Malik taken at some point during her university years in Multan, Pakistan. Those who knew Malik described her as a "modern woman" who became deeply religious, though never an extremist.
On Dec. 7, 2015, the FBI said the couple were radicalized and had been for some time." Just before the shooting Malik pledged her allegiance to ISIS leader Abu Bakr al_Baghdadi in an online posting. The married couple responsible for the San Bernardino shooting participated in target practice once within days of the attack that killed 14 people. The couple used two altered AR-15 semiautomatic weapons and two pistols in the attack.
Syed Rizwan Farook
An undated photo from an online dating website shows Syed Rizwan Farook, who was one of the shooters in the Dec. 2, 2015 shooting at the Inland Regional Center in San Bernardino, California.
A friend, Enrique Marquez, purchased two assault rifles used in the attacks and was questioned by the FBI.
A student ID of Syed Rizwan Farook from Cal State Fullerton found at his apartment in Redlands, California. Farook attended classes at the college for one semester.
San Bernadino shooters
This undated combination of photos provided by the FBI, left, and the California Department of Motor Vehicles shows Tashfeen Malik, left, and Syed Farook.
Bahauddin Zakariya University
Pakistani commuters enter the Bahauddin Zakariya University in Multan on Dec. 7, 2015, where Tashfeen Malik studied.
The woman attended one of Pakistan's most high-profile religious schools for women, a teacher at the madrassa told AFP on Dec. 7.
Pakistani students arrive at Al-Huda Institute, one of the most high-profile female madrassa (Islamic religious school), in Multan on Dec. 8, 2015, where Tashfeen Malik studied.
The women's seminary in Pakistan where Malik studied for over a year disavowed the massacre, saying there is "no space for such acts in the name of Islam."
A reporter takes a photo of a dining room table inside the home of shooting suspect Syed Rizwan Farook and Tashfeen Malik on Dec. 4, 2015 in Redlands, California.
Police found 19 pipes in the couple's home that could be turned into bombs with the right components.
A can of gun oil sits in a bedroom closet inside the home of shooting suspect Syed Rizwan Farook and Tashfeen Malik on Dec. 4, 2015 in Redlands, California.
The San Bernardino community is mourning as police continue to investigate a mass shooting at the Inland Regional Center in San Bernardino that left 14 people dead and another 21 injured.
A copy of the Quran and a list of items seized by the FBI sit on a table in the home of Syed Rizwan Farook and Tashfeen Malik, Dec. 4, 2015 in Redlands, California.
Dar Al Uloom Al Islamiyah-Amer mosque
Shown is the Dar Al Uloom Al Islamiyah-Amer mosque where shooting suspect Syed Farook attended and held his wedding reception in Riverside, California Dec. 4, 2015.
Authorities are investigating the San Bernardino, California, shooting as an "act of terrorism," Federal Bureau of Investigation assistant director David Bowdich said at a news conference.
FBI investigators sort through contents of the garage of the suspects involved in the Wednesdays attack in the aerial photo in Redlands, California, Dec. 3, 2015.
SUV used in attack
The remains of a SUV involved in the Dec. 2, 2015 attack in San Bernardino, California Dec. 3.
Al Uloom Al Islamiyah-Amer mosque
People leave after Friday prayers Dec. 4, 2015 at the Dar Al Uloom Al Islamiyah-Amer mosque, where shooting suspect Syed Rizwan Farook was seen two to three times a week at lunch time in San Bernardino, California.
Authorities are investigating the San Bernardino, California, shooting as an "act of terrorism," Federal Bureau of Investigation assistant director David Bowdich said at a news conference on Dec. 4.
Weapons used in attack
Weapons confiscated from the Dec. 2 attack in San Bernardino, California are shown in this San Bernardino County Sheriff Department photo released to Reuters Dec. 3.