Female San Bernardino Shooter Pledged Allegiance to ISIS

CAIR Director: U.S. 'Partly Responsible' for Islamic Terrorism

A California mosque director remembered San Bernardino gunman Syed Rizwan Farook as "quiet and peaceful" before the U.S.-born health inspector moved away with his new wife and future terror partner Tashfeen Malik.

Dr. Mustafa Kuko, Director of the Islamic Center of Riverside, spoke to "Kelly File" about the man he knew before Farook married Malik and the pair turned into killers.

Farook attended the mosque in Riverside from 2012 to 2014. During that time, the two men grew close, and Kuko said they discussed everything from Islam to Farook's love life.

Kuko said that Farook brought up his concerns about Malik being born and growing up overseas. Malik was born in Pakistan and moved to Saudi Arabia when she was a young child. The pair met online.

Kuko said he gave his blessing to Farook to marry Malik, but cautioned him to check on her background.

He said Farook stopped attending the mosque about three months after getting married because the couple moved to another city.

When he heard Farook was behind Wednesday's deadly attack, Kuko said he was shocked.

"I was (in a) little disbelief because I know the guy," Kuko told Megyn Kelly in a phone interview. "How can he do something like this? It was awful."

Kuko said the man he knew seemed incapable of mass murder.

"It's kind of hard for me to rectify, someone who's so quiet and peaceful and someone who has the audacity to commit such horrendous crime."

He said Farook never told him about any office conflict, and that he couldn't say if reports Malik had pledged allegiance to ISIS were true or not.

Watch the full interview above, along with commentary from former Homeland Security analyst and author Brad Thor.

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