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The murder of Michael Bonnin reflects the continuation of John Wayne Gacy’s now fully established killing cycle. By mid-1976, Gacy had developed a system that allowed him to repeatedly lure, restrain, and murder victims with little variation. This case is significant because it shows how normalized the process had become—there was no longer escalation in method, only repetition and increasing confidence. Gacy was now killing with consistency, and each new victim reinforced his belief that he could continue without consequence.
Gacy encountered Bonnin and persuaded him to return to his home, likely using the promise of work or money. By this stage, Gacy’s approach was highly effective and repeatable. Once inside the residence, Gacy used the “handcuff trick” to restrain Bonnin. This method had become a reliable way to gain control without immediate resistance. After restraining him, Gacy assaulted and murdered Bonnin, most likely through strangulation. The method remained consistent with previous killings, reflecting a standardized approach. Following the murder, Bonnin’s body was buried in the crawl space beneath Gacy’s house. The space was becoming increasingly crowded, yet Gacy continued to use it as his primary method of disposal.
At the time, Bonnin’s disappearance did not lead to a breakthrough. There were no witnesses linking him to Gacy, and no physical evidence pointing to a specific suspect. The lack of coordination between missing persons cases during this era contributed to the failure to identify a pattern.