Watch FBI Online: Season 4 Episode 20

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Did the gang manage to find the killer of a TSA agent?

On FBI Season 4 Episode 20, it was time to make a tough call as OA struggled to come to terms with the aftermath of the sarin gas exposure.

Targeting Powerful Women - FBI

It also hit him that it was the 10th anniversary of his best friend's death, and he had to do some soul searching.

Meanwhile, Jubai dropped a bombshell on his co-workers.

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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.

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