Did Jamie make a mistake?
On Blue Bloods Season 9 Episode 21, she visited Eddie's father, Armin, in prison and things took a gnarly turn.
Meanwhile, DNA evidence in a murder case found Danny and Baez confronting identical twins with identical alibis.
How did they manage to find out the truth?
Elsewhere, Frank learned that Nicky was interviewing for a job at the Justice Coalition, which he always hated.
Why was he leaving his former post behind?
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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.