Does Tony Have a Sister? - NCIS
Does Tony have a sister? Apparently, it's possible on NCIS. "Reasonable Doubts" is the 19th episode of the show's 13th season.

Unrated
Photo Credit:
CBS
Show:
NCIS
Episode:
NCIS Season 13 Episode 19: "Reasonable Doubts"
Character:
Anthony (Tony) DiNozzo
Related Photos:
NCIS Photos, Anthony (Tony) DiNozzo Photos
Location:
Los Angeles, California
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NCIS Season 13 Episode 19 Quotes

Vance: Well, at this point we can't charge either one of them. Whoever we brought to trial...her defense would be that the other one did it.
Gibbs: I agree with you. There's so much reasonable doubt, a jury could never convict.

So, are these two women (who supposed hate one another) conspiring to cover up the truth?

Ducky