FBI: Orlando shooter bought tickets to San Francisco before massacre

AP photo 

The FBI is looking into Omar Mateen's purchase of plane tickets for himself, his wife and child days before he unleashed the massacre in Orlando's Pulse Nightclub, a law enforcement source close to the investigation told Fox News on Wednesday.

The tickets were for a flight to San Francisco set for weeks after the June 12 attack. Fox News is told the FBI is trying to make sense of the timing.

Mateen's mother-in-law lives in the Bay Area. She had underwent an operation and was not recovering, NBC News reported.

Read the full story from Fox News here.