Pauley Perrette, who played forensic scientist Abby Sciuto, has signed off from the long-running CBS crime drama after 15 seasons on the show./Source: Patrick Mcelhenney/CBS
Stories this photo appears in:
Pauley Perrette bids farewell to 'NCIS'
Warning: This story contains spoilers about the May 8 episode of "NCIS." The "NCIS" lab has lost its resident goth genius.
