CSI: NY

Adam and Sheldon take Mac and the NYPD officer on a virtual tour of the scene of the...

Adam makes it back to the precinct safely but figures out the victim had nothing to do with...

While an angry mob is outside, Mac and Detective Flack question a New York police officer...

Jo goes down to the lab to discuss new evidence with Sheldon

Mac asks the victim's girlfriend to come down so she can hear the truth firsthand

Mac questions an ex-cop about a Valentine's Day shooting

Messer interrogates a suspect about the murder of her husband. Love really is blind.

Lovato and Flack discuss their Valentine's Day plans. Sid gives Lindsay some interesting news...

It's Valentines Day and there are three murders of love

Guest star Josh Groban provides some very romantic music for Mac and his love