Did Shaun find a sibling?
On Blue Bloods Season 10 Episode 19, he got a match from an unknown relative from a DNA network.
What did the person want with him?
Meanwhile, Frank got a personal request from a mystery woman, to transer her son to a safer assignment.
Also, Danny tried to uncover the truth behind the murder of a key witness in one of Erin's cases.
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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.