Arthur Floyd ’Taco’ Bell, 54, was one of four people killed during an armed robbery at a Tucson firefighters’ union hall on June 13, 1996. Bell was at the hall with his 46-year-old wife Judy Bell, 53-year-old patron Maribeth Munn, and 50-year-old bartender Carol Lynn Noel when two armed men entered and the robbery escalated into a shooting that left all four dead.

Investigators linked the attack to two suspects, Scott Douglas Nordstrom and Robert Glen Jones Jr., who were charged in the murders. Authorities say the pair were involved in a wider crime spree that included a separate fatal robbery at a smoke shop about two weeks earlier.

What does anyone remember about that night at the union hall or about the victims’ lives in Tucson?