Highlander: The Series - Season 1 - Eps 12: Eyewitness
Tessa witnesses the murder of a painter, Anne Wheeler, but the absence of a body leads everyone but MacLeod to doubt her story. MacLeod supports Tessa in her quest to obtain justice for Anne. It develops that Anne was killed by her Immortal ex-lover, to keep her from revealing his secret. After Tessa is taken to a police safe house, MacLeod realizes that the killer is in fact the Chief of Detectives, and he must rescue Tessa and bring justice to Anne's killer.
About Highlander: The Series

Title: Highlander: The Series
First Air Date: 1992-10-03
Last Air Date: 1998-05-16
Status: Ended
Rating: 7.394/10 (from 390 votes)
Language: EN
Seasons: 7
Total Episodes: 119
Network: Syndication
Genres: Sci-Fi & Fantasy, Drama, Action & Adventure
Production Companies: Reteitalia, RTL, Gaumont International Television, Amuse Video, Atlantique Productions, Rysher Entertainment, M6 Métropole Télévision, Filmline International, Davis-Panzer Productions, TF1 Films Production, Amuse Soft Entertainment
Synopsis
Duncan MacLeod cannot die -- he is a 400-year-old immortal, who has seen his share of humanity's history. Still, he risks his life in battle against other immortals and tries to save people from harm.
Cast

Adrian Paul
Duncan MacLeod

Jim Byrnes
Joe Dawson