VIDEO : Pauley Perrette Says Goodbye To NCIS

(CNN)Warning: This story contains spoilers about the May 8 episode of "NCIS." Pauley Perrette, who played forensic scientist Abby Sciuto, has signed off from the long-running CBS crime drama after 15 seasons on the show. Though Perrette's impending exit from the series was announced in October 2017, her character Abby's fate was left in question at the end of last week's episode after she and MI-6 officer Clayton Reeves (played by Duane Henry), were confronted by a gun-wielding thief.