It's every dog owner's worst nightmare.
Diego, a much-loved black wire-haired terrier belonging to Prospect Heights residents Yana Walton and Miriam Uranga, has been missing and presumably without crucial medication since Friday, June 22.
Anyone with information is urged to contact 562-794-8178 or 646-453-9816.
If you see Diego, offer him a snack or urge him to come to you. He will run if chased, his owners say.