FILE - In this July 27, 2014 file photo provided by U.S. Customs and Border Protection shows Tashfeen Malik, left, and her husband, Syed Farook, at O'Hare International Airport in Chicago. For a crisis counselor who lost a loved one in the San Bernardino terrorist attack, the last six months have been a journey on the other side of crisis. Mandy Pifer's boyfriend, Shannon Johnson, was one of the 14 people killed in the December 2015 mass shooting by Malik and Farook. (U.S. Customs and Border Protection via AP, File)

This July 27, 2014, file photo provided by U.S. Customs and Border Protection shows Tashfeen Malik, left, and Syed Farook, as they passed through O'Hare International Airport in Chicago. The husband and wife died on Dec. 2, 2015, in a gun battle with authorities several hours after their assault on a gathering of Farook's colleagues in San Bernardino, Calif. The prosecutor's office says information contained in an encrypted iPhone could help finally answer whether there was a third assailant in the San Bernardino terror attack that killed 14 people.The district attorney's brief is among many weighing in on the fight between Apple and the federal government over unlocking the county-owned iPhone used by shooter Syed Farook. (U.S. Customs and Border Protection via AP, File)

FILE - In this Tuesday, Sept. 1, 2015, file photo, San Bernardino County District Attorney Mike Ramos, right, joined by Sheriff John McMahon, speaks during a news conference in San Bernardino, Calif. In a brief filed in federal court Thursday, March 4, 2016, by DA Ramos' Office cites two 911 calls reporting three perpetrators during the attack. The district attorney's brief is among many weighing in on the fight between Apple and the federal government over unlocking the county-owned iPhone used by shooter Syed Farook. He and his wife, Tashfeen Malik, died in a gun battle with police following the Dec. 2 attack. (John Valenzuela/The Sun via AP, File) MANDATORY CREDIT

San Bernardino Police Chief Jarrod Burguan and the FBI seek the public's help in filling in a missing 18 minutes of the Dec. 2 San Bernardino shooters' timeline during a press conference held at the San Bernardino Police Department in San Bernardino, Calif. on Tuesday, Jan. 5, 2016. Investigators are trying to fill in the missing timeline gap of what shooters Syed Rizwan Farook and Tashfeen Malik did on the day of the deadly attack at the Inland Regional Center on Dec. 2 in San Bernardino. (Rachel Luna/The Sun via AP)

Mourners visit a makeshift memorial in San Bernardino, Calif. on Sunday, Dec. 6, 2015, honoring the victims of the fatal shootings by suspects Syed Rizwan Farook, 28, and his wife, Tashfeen Malik, 29. (AP Photo/Jae C. Hong)

FILE - This July 27, 2014 file photo provided by U.S. Customs and Border Protection shows Tashfeen Malik, left, and her husband, Syed Farook, as they passed through O'Hare International Airport in Chicago. The attack in San Bernardino, California, that left 14 people dead represented a type of extremist plot law enforcement authorities consider exceedingly difficult to detect: a conspiracy between close family members. (U.S. Customs and Border Protection via AP, File)

FILE - This July 27, 2014 file photo provided by U.S. Customs and Border Protection shows Tashfeen Malik, left, and Syed Farook, as they passed through O'Hare International Airport in Chicago. The shooters suspected in the San Bernardino massacre operated under a cover rarely used to plot terror. Marriage provided Farook and Malik a shield that would have been nearly impossible for law enforcement to penetrate, even if they knew the couple had become radicalized. (U.S. Customs and Border Protection via AP, File)

FILE - This July 27, 2014 file photo provided by U.S. Customs and Border Protection shows Tashfeen Malik, left, and Syed Farook, as they passed through O'Hare International Airport in Chicago. The husband and wife died on Dec. 2, 2015, in a gun battle with authorities several hours after their assault on a gathering of Farook's colleagues in San Bernardino, Calif. (U.S. Customs and Border Protection via AP, File)

Ruby Tariq, spokesperson of Al-Huda International Welfare Foundation, poses with a religious book at her office in Karachi, Pakistan, Wednesday, Dec. 9, 2015. California shooter Tashfeen Malik had studied at the foundation’s Multan branch for a brief period between 2013 and 2014. Tariq insisted that whatever Malik did in California was a personal act and that institutions are not responsible for their ex-student’s behavior. Al-Huda said in a statement that it has no links to any "extremist regime" and seeks to promote a "peaceful message of Islam and denounce extremism, violence and acts of terrorism." (AP Photo/Shakil Adil)

Ruby Tariq, right, spokesperson of Al-Huda International Welfare Foundation, talks to The Associated Press in Karachi, Pakistan, Wednesday, Dec. 9, 2015. California shooter Tashfeen Malik had studied at the foundation’s Multan branch for a brief period between 2013 and 2014. Tariq insisted that whatever Malik did in California was a personal act and that institutions are not responsible for their ex-student’s behavior. Al-Huda said in a statement that it has no links to any "extremist regime" and seeks to promote a "peaceful message of Islam and denounce extremism, violence and acts of terrorism." (AP Photo/Shakil Adil)

Ruby Tariq, spokesperson of Al-Huda International Welfare Foundation, talks to The Associated Press in Karachi, Pakistan, Wednesday, Dec. 9, 2015. California shooter Tashfeen Malik had studied at the foundation’s Multan branch for a brief period between 2013 and 2014. Tariq insisted that whatever Malik did in California was a personal act and that institutions are not responsible for their ex-student’s behavior. Al-Huda said in a statement that it has no links to any "extremist regime" and seeks to promote a "peaceful message of Islam and denounce extremism, violence and acts of terrorism." (AP Photo/Shakil Adil)

Ruby Tariq, spokesperson of Al-Huda International Welfare Foundation, talks to The Associated Press in Karachi, Pakistan, Wednesday, Dec. 9, 2015. California shooter Tashfeen Malik had studied at the foundation’s Multan branch for a brief period between 2013 and 2014. Tariq insisted that whatever Malik did in California was a personal act and that institutions are not responsible for their ex-student’s behavior. Al-Huda said in a statement that it has no links to any "extremist regime" and seeks to promote a "peaceful message of Islam and denounce extremism, violence and acts of terrorism." (AP Photo/Shakil Adil)

FILE - This undated combination of file photos provided by the FBI, left, and the California Department of Motor Vehicles shows Tashfeen Malik, left, and Syed Farook. Autopsies released Friday, May 27, 2016, of the 14 victims of the San Bernardino terror attack confirm that all died quickly after being shot at least twice but also reveal chilling details of the carnage. The autopsies of the husband-and-wife killers were not released Friday. County spokesman David Wert said their death investigations had not been finished and had no estimate of when they would be ready. The husband and wife died on Dec. 2, 2015, in a gun battle with authorities several hours after their assault on a gathering of Farook's colleagues in San Bernardino, Calif. (FBI, left, and California Department of Motor Vehicles via AP, File)

FILE - This undated combination of file photos provided by the FBI, left, and the California Department of Motor Vehicles shows Tashfeen Malik, left, and Syed Farook. The husband and wife died in a fierce gunbattle with authorities several hours after their commando-style assault on a gathering of Farook's colleagues from San Bernardino, Calif., County's health department Wednesday, Dec. 2, 2015. (FBI, left, and California Department of Motor Vehicles via AP, File)

FILE - In this July 27, 2014 file photo provided by U.S. Customs and Border Protection shows Tashfeen Malik, left, and her husband, Syed Farook, at O'Hare International Airport in Chicago. A schism has emerged among family members of victims and survivors of the San Bernardino, California terrorist attack, with at least a couple supporting Apple Inc. in its battle against a federal court order to help the FBI hack into a shooter’s locked iPhone. (U.S. Customs and Border Protection via AP, File)