The first funerals for the 14 people killed in the Dec. 2 San Bernardino shooting took place in California, Dec. 10-12, 2015

In this photo, Trung Do embraces his mother Van Thanh Nguyen, mother of Tin Nguyen, as she weeps over her daughter's coffin during her wake at the Peek Funeral home in Westminster, California, Dec. 11, 2015.

People look on as pallbearers carry the casket of San Bernardino shooting victim Tin Nguyen during her funeral at Saint Barbara's Catholic Church in Santa Ana, California, Dec. 12, 2015.

Pallbearers carry the casket of Tin Nguyen during her funeral at Saint Barbara's Catholic Church in Santa Ana, California, Dec. 12, 2015.

Pallbearers rest their hands on the casket of Tin Nguyen during her funeral in Santa Ana, California, Dec. 12, 2015.

Van Thanh Nguyen (C) walks as pallbearers carry the casket during the funeral for her daughter, San Bernardino shooting victim Tin Nguyen, at Saint Barbara's Catholic Church in Santa Ana, California, Dec. 12, 2015.

Pallbearers carry a photo of Tin Nguyen and her casket during her funeral in Huntington Beach, California, Dec. 12, 2015.

Van Thanh Nguyen (C) cries during the funeral for her daughter, Tin Nguyen, at Good Shepherd Cemetery in Huntington Beach, California, Dec. 12, 2015.

Friends and family write messages on the burial vault and leave flowers for Tin Nguyen in Huntington Beach, California, Dec. 12, 2015.

Van Thanh Nguyen (C) carries a photo of her daughter, Tin Nguyen, during her funeral in Huntington Beach, California, Dec. 12, 2015.

Flowers and a portrait of Isaac Amanios are displayed at a memorial service at St. Minas Church in Colton, California, Dec. 12, 2015.

Amanios, a 60-year-old environmental health inspector, fled his war-torn country in search of the American dream. Amanios immigrated to California in January 2000 from Eritrea.

Pallbearers carry the casket of Isaac Amanios, a victim of the mass shootings in San Bernardino, on Dec. 2. as they leave after a memorial service at St. Minas Church in Colton, California, Dec. 12, 2015.

Family members and friends of Isaac Amanios grieve during a memorial service at St. Minas Church in Colton, California, Dec. 12, 2015.

Yvette Velasco, 27, was the first victim in the San Berardino shootings to be laid to rest in Covino, California, Dec. 10, 2015.

Velasco, one of the youngest victims, was at the training and holiday luncheon at the Inland Regional Center when Syed Farook and his wife, Tashfeen Malik, barged in on the gathering and opened fire on his San Bernardino County Department of Public Health coworkers, killing 14 and injuring 22 others.

Family members, friends, and law enforcement members attend the funeral service for Yvette Velasco at the Forest Lawn in Covina, California, Dec. 10, 2015.

FBI is investigating the shootings as an "act of terrorism."

Family members, friends, and law enforcement members attend the funeral service for Yvette Velasco in Covina, California on Dec. 10, 2015.

Mourners arrive for the memorial service for San Bernardino shooting victim Yvette Velasco in Covina, California, Dec. 10, 2015.

Pallbearers carry the casket of Yvette Velasco in Covina, California on Dec. 10, 2015.

Pallbearers carry in the casket of San Bernardino shooting victim Yvette Velasco during her memorial service in Covina, Dec. 10, 2015.

Family members hug near the casket of 27-year-old Yvette Velasco at the first funeral for victims of the December 2 massacre in San Bernardino on Dec. 10, 2015 in Covina.

A relative blows a kiss at the casket of Yvette Velasco during a memorial service, Dec. 10, 2015 in Covina.

Pallbearers carry the casket of Yvette Velasco as they arrive at a memorial service, Dec. 10, 2015 in Covina.

CBS News: San Bernardino shooting victims