Diana Dawn Vicari was 19 and a student at Pima Community College when she was last seen on the night of Thursday, October 22, 1992. Either way, that night was the last reported sighting.

Two days later a woman scavenging for cans found plastic bags in a dumpster behind a downtown Tucson business containing Diana’s severed arms; the rest of her remains have never been recovered. Diana’s gray 1981 Ford Mustang was later found in a residential neighborhood on West La Osa Drive with her purse and books appearing undisturbed.

The case has stretched across decades, including the 1999 conviction and 2003 reversal of Lemuel Prion; investigators have named other persons of interest at various times but no definitive link has been established. The Tucson Police Department continues to treat this as an unsolved homicide and has appealed for information, including from people who attended Moshtoberfest in 1992.

Did anyone attend that concert or see Diana around North Oracle Road on October 22, 1992?