At a private clinic (cold storage room), a nurse was killed because she tried to stop a man from throwing away a lot of embryos in the sink. The murderer had access to the facility; detectives started questioning people who wanted to sabotage the clinic for "natural law" purpose. A maintenance man gave to the killer a free pass, in exchange for money. A middle aged woman (Lisa Eichhorn) held a grudge against the second wife of her deceased husband: she wanted embryos implanted inside or her for the legacy, the newborn baby could be considered a jackpot for her (despite the frozen embryos belonged to the first wife). Anyway there were no evidences against her, because a former police officer was hired to do the dirty work (get rid of the tank content) and the murder was just an accident.
Destroy property and not homicide: it's not easy for McCoy to convict the sender for the real crime. The topic was a matter very controversial at that time (nineties): Curtis and Briscoe had different views, there was a little argument between the two detectives, because they both made the topic too personal (sick wife for Curtis, deceased daughter for Lennie).