NCIS Season 3 Episode 21

A couple checking in a motel room finds bloody humans remains splattered all over it. Ducky finds it's not a corps but human tissue removed during surgical operations on at least four persons. This medical waste is traced to Abby's Gothic ex, crime scene cleaner Mikel Mawher, against whom she got a court order for stalking. The evidence proves most toxic. For Abby's safety, she's quartered in with NCIS men, yet the case literally sneaks in before taking surprising turns.