Highlights from the Twentieth Episode of Season 4 of Blue Bloods

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Erin Reagan S4 E20

When Erin is assigned to investigate a case in which an on-duty police officer is accused of killing a suspect already in custody, Frank urges her to stick to the facts to avoid a publicity scandal for the NYPD. Meanwhile, Jamie urges Eddie to forgive her father for his past mistakes. Pictured: Bridget Moynahan as Erin Reagan. Photo: John Paul Filo/CBS ©2014 CBS Broadcasting Inc. All Rights Reserved.