Augustine Macias, 74, of Simi Valley, California, disappeared on November 20, 2014 after leaving his home for his usual daily walk near Tapo Street and Los Angeles Avenue. He had dementia and never returned from that walk, prompting searches by local authorities and volunteers. At the time he went missing he was wearing a light brown long-sleeve shirt, a black wool jacket, blue jeans, black shoes, and a blue baseball cap with a yellow S insignia.

Searches continued into early 2015; organizers recovered some personal items of interest during one search but those items were never definitively linked to Macias. He is classified as at risk because of his medical condition, and the Simi Valley Police Department keeps the case open. If anyone saw Augustine around Tapo Street and Los Angeles Avenue on or after November 20, 2014, or has other information that could help locate him, please come forward.