The Christian County Sheriff’s Office reports 71 year old Rebecca L. Arkebauer is back with her family after going missing earlier this week.     Family members advised Arkebauer has been  showing signs of Alzheimer’s and her destination was unknown but they were able to gain access to her location through her vehicle.  She was found in the Kankakee County town of St Anne.   The family is thanking a number of police agencies involved the search, including the Illinois State Police, which deployed aerial assets to get a bird's eye view in the search for Arkebauer.