Leland Zook was reported missing from Colorado Springs, Colorado, on November 1, 1989. His niece filed the report and said she was concerned for his well-being because he struggled with alcoholism and did not carry identification, factors that made him vulnerable and difficult to trace. She thought he might have been in either the Colorado Springs or Denver area when he disappeared.

At the time he went missing Zook was 62, a white male with blue eyes, about 5 feet 8 inches to 5 feet 9 inches tall and 135 to 145 pounds. His hair is listed in different reports as blond/strawberry and black. The Colorado Springs Police Department holds the case under file number 90-02493; there has been no confirmed contact from him since the report and few substantive leads.

Many basic details about his movements before November 1, 1989 are not known, which has hampered the inquiry. If anyone in Colorado Springs or Denver remembers seeing Leland around that time or has information that could help, please contact the Colorado Springs Police Department.