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LONGMONT, Colo. — A 26-year-old man with a condition that requires medication has been missing since Friday, the Longmont Police Department said.

Richard (Rick) Steven Rue is from Longmont. His last known location was at a Good-To-Go store in Williamsburg, N.M., police said.

“It is unknown why Rick left Colorado or where he may be going,” investigators stated.

Family members say this is unusual behavior for him. Rue is believed to be driving a 1994 White Ford Ranger with Colorado license plate 835-XMF.

“Family members are concerned for Rick’s safety since he has not had his medications for what is believed to be at least 56 hours,” police stated.

Rue is 6-foot-1 and weighs about 195 pounds. He has brown hair, brown eyes and often times wears wide brim hats.

Anyone who sees him or knows his location is asked to contact police at 303-651-8555.