Was Elizabeth Williams a villain?
That was revealed on NCIS: Los Angeles Season 10 Episode 6 when the informant was arrested after assisting the NCIS with an undercover operation.
With no alibi, it seemed like there was something she was hiding and the NCIS set out to find out the truth.
Also, Callen met up with ATF Agent Anna Kolchek who was still on suspension following everything that happened in Mexico.
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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.