Charles Simmons, known as Chuck, was 52 when he was last heard from on January 14, 2004, in Tucson, Arizona. A lifelong Tucson resident and Northern Arizona University graduate, he worked as a gem and mineral dealer and had just returned from a mining operation. He failed to attend several planned weekend activities, including a date with his girlfriend and a University of Arizona basketball game.

Three days after he was last heard from, Simmons’ Ford F-150 was found abandoned in a tow-away zone across from a warehouse where he and a business partner handled semi-precious minerals. Investigators found no signs of a struggle in or around the truck, and there has been no activity on his financial accounts since his disappearance. Law enforcement suspects foul play.

Police have focused on Simmons’ financial dealings; he had loaned out large sums and had recently sought help to recover a six-figure debt from an acquaintance who was interviewed and whose rented van was examined for evidence. A 2015 tip prompted a search of an abandoned mine shaft in Saguaro National Park but produced no evidence. The Pima County Sheriff’s Department lists the case as an active missing person investigation.

If anyone knew Charles, his business contacts, or saw his truck in mid-January 2004, can you share what you remember?