A U.S.-born Muslim and his wife were identified as the shooters who barged into a holiday party in San Bernardino, California, on Dec. 2 and opened fire, killing 14 people and wounding 17 others.
Syed Rizwan Farook, 28, was reportedly at the holiday party at Inland Regional Center and then left, returning with his wife — 27-year-old Tashfeen Malik — a short time later to carry out the attack, which is believed to have been planned beforehand. The couple had been married for two years, CNN reports.
The pair were killed in a gunfight with police after a lengthy chase through the streets of San Bernardino. Farook is thought to have been an employee of the San Bernardino Health Department as an environmental health specialist.
Coworkers described the man as polite, adding that he seemed to carry no grudges with anyone in the workplace. Authorities said that he did, however, leave the holiday party "under some circumstances that were described as angry" before returning with Malik, according to the Los Angeles Times.
Authorities are still unsure of why Farook and Malik carried out the shooting; both terrorism and a workplace dispute are being considered as possible motives.
“I have no idea, why would he do that," Farook’s brother-in-law, Farhan Khan, said during a news conference held by the Council on American-Islam Relations (CAIR) following the shooting, according to the LA Times.
"Why would he do something like that?" Khan added.
A third person was reportedly detained in the area where the chase concluded, but authorities have not connected this individual with the shooting.
The suspects had a 6-month-old daughter who was left with Farook’s grandmother on the day of the shooting, CNN reports. The grandmother attempted to contact Farook after hearing reports about the shooting.