In the spring of 1984, the life of 18-year-old Sheryl Lynn Bonaventura of Grand Junction, Colorado, was tragically cut short. The white female was last seen on March 29, 1984, at a local shopping mall. Her disappearance sparked immediate concern, launching an investigation that would uncover a story of manipulation and violence.
Investigators soon linked Bonaventura's case to Christopher Wilder, a 39-year-old Australian-American serial killer known for preying on young women with promises of modeling careers. Witnesses reported seeing Bonaventura with Wilder at a diner in Silverton, Colorado, and later at the Four Corners Monument. Their journey together continued to Page, Arizona, where Wilder checked into a motel with her on March 30. The following day, he checked into a Las Vegas motel alone.
On May 3, 1984, picnickers discovered Bonaventura's nude body in a desolate desert area near U.S. Highway 89, approximately 12 miles east of Kanab, Utah. An autopsy confirmed her identity through dental records and revealed the brutal nature of her death; she had sustained multiple stab wounds to the chest and a single gunshot wound. Her death was estimated to have occurred around March 31, just two days after she was last seen with Wilder.
Wilder, who was on the FBI's Ten Most Wanted list for a cross-country crime spree involving the murders and disappearances of several young women, was killed on April 13, 1984, during a violent struggle with police in Colebrook, New Hampshire. He was the sole suspect identified in connection with Sheryl Lynn Bonaventura's murder, and his death effectively closed the case. No arrests were made as the only individual tied to her death was already deceased.
