NCIS Season 13, Episode 6 : Viral

When a petty officer's murder matches the M.O. of a local serial killer, the NCIS team must determine if this is the killer's latest victim or the work of a copycat. Also, McGee and Delilah must learn to compromise before moving in together. Guest Stars: Rocky Carroll, Kelli Williams, Gregory Harrison, Brad Benedict, Kelly Frye, Ryan Kennedy, Andrew Hawkes, Alisha Boe, Dante Swain, Makabe Ganey, Melissa Greenspan, Jamie Bamber, Margo Harshman,

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