Top 10 moments from 'Blue Bloods' episode 'New Rules'

4. Losing the suspect

Even though the police had to turn Mario loose, they still have him under surveillance until they can get more evidence. Danny is able to get Hector to identify him as the shooter, but unfortunately, Mario escapes. When Frank hears this, he and Sid get into it when Sid wants to release the hounds, so to speak, to find the man. Frank is not thrilled, but in the heat of the moment, he agrees.

Friday can't come soon enough. #BlueBloods

Posted by Blue Bloods on Tuesday, April 21, 2015

Image via Facebook from Blue Bloods

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