On the evening of October 19, 1984, 24-year-old Brian Leigh Davis attended a party in the 700 block of East First Street in Tucson. A dispute with an unknown man described as a party crasher escalated into violence when the assailant produced a gun and shot Davis once through the right eye. Davis was taken to the University of Arizona Medical Center and died the following morning.

Witnesses — more than two dozen people at the gathering — described the shooter as a white male about 25 to 30 years old, roughly 5 feet 8 inches tall and 150–160 pounds, with dark hair, an unkempt beard and mustache, wearing dark clothing. The suspect fled on a stolen ten-speed bicycle after briefly dropping the weapon. The murder weapon was never recovered.

The investigation eventually went cold and remains unsolved; no arrests have been announced and no suspects have been publicly identified beyond that description. Davis’s family said he struggled with schizophrenia before his death, and one witness later reported overhearing talk at a nearby boarding house that someone had been paid to have Davis killed, a lead that produced no public developments.

Did anyone at the party or in that neighborhood in October 1984 ever notice a man matching that description or a ten-speed bicycle being taken away?