(Happy Valley, OR)  --  Police in Clackamas County are searching for a missing and endangered man.  The Clackamas County Sheriff's Office says 58-year-old Geoffrey Wanless walked away from his caretaker yesterday afternoon at the Walmart store on Southeast 82nd Avenue near Johnson Creek Boulevard.  Surveillance footage shows him leaving the store.  Police say Wanless is endangered and walks with a limp.  Anyone with information is urged to contact police.