To Catch a Killer

As he investigates the missing person report of a teenager named Christopher Gant (based on Gacy's final victim, Robert Piest), Des Plaines, IL detective Lt. Joseph Kozenczak (Riley) becomes concerned that local businessman John Wayne Gacy (Dennehy) may be responsible for this as well as many other disappearances. However, when he and his team are ready to arrest Gacy, their evidence is viewed as being circumstantial. Worst of all, everyone (including Kozenczak's superiors) view Gacy as a respectable pillar of society. Meanwhile, Gacy himself begins a sadistic game of cat-and-mouse as he tries in every way to manipulate and outwit the police.

After eventually achieving two search warrants, Kozenczak finds a large amount of incriminating evidence, and later 29 bodies buried throughout John Gacy's property; the remaining four are found dumped in a nearby river, including Gant's remains. Afterwards, he is charged with the rape and murder of 33 boys and young men and convicted, being sentenced to death.

• Brian Dennehy as John Wayne Gacy
• Michael Riley as Lieutenant Joseph 'Joe / Polock' Kozenczak
• Margot Kidder as Rachel Grayson
• Meg Foster as City Attorney Linda Carlson
• Martin Julien as Theodore 'Ted' Koslo
• Scott Hylands as Delta Squad Sergeant Mike Paxton
• David Eisner as Detective Terry Williams
• John Boylan as Detective Gary Atkins
• Tony De Santis as Delta Squad Detective Craig DeMarco
• Mark Humphrey as Delta Squad Detective King
• Gary Reineke as Delta Squad Detective Leonard 'Lenny' Petrie
• Tim Progosh as Delta Squad Detective Jack Morris
• Danny Pawlick as Patrolman Tony Santori
• Bruce Ramsay as Forensic Officer Edward 'Ed' Bragg
• Brenda Bazinet as Alice Pearson
• Liliane Clune as Marcia Kozenczak
• Toby Proctor as Michael Kozenczak
• Christopher Marren as Billy
• Jay Brazeau as Jake Burns

The film was broadcast in three countries, the United States, Canada and the United Kingdom.[1][2] In general, the film was received well by critics. As a result, Brian Dennehy was nominated for an Emmy Award for "Outstanding Lead Actor in a Miniseries or a Special." In addition, actor Michael Riley and director Eric Till were both nominated for two individual Gemini Awards.

The film broadly follows the historical narrative of the investigation leading to John Wayne Gacy's arrest in December 1978 and does not directly depict his earlier life or criminal activity prior to 1978. Several changes to names and details of real persons involved in the case were made. This was likely for legal reasons, as many key witnesses and victims' family members, as well as Gacy himself, were still alive at the time of production. Gacy's last known victim Robert Piest was represented in the film as 'Chris Gant.' The name of Gacy's contracting company was changed from 'PDM Contractors' to 'LPW Construction' in the film. The real-life detective Lt. Joseph R. Kozenczak served as a technical advisor to the production.[3]

Dennehy's performance was widely recognized and the actor became associated with Gacy. In 2010, eighteen years after the film's first broadcast in the US, a profile of Dennehy in the Times of North West Indiana noted, "whenever Dennehy comes back to Chicago, which is often... he's inevitably asked about his made-for-television 1992 movie role in To Catch a Killer."[4] Dennehy received a letter from Gacy following the film's US broadcast, in which Gacy admonished him for taking part in a "fraud" film, and maintained his claim that "lots of people had access to that crawl space."[5]

• To Catch a Killer on IMDb