Agents with the FBI searched a Davis home next to the one where an elderly couple were murdered in their beds almost exactly two months ago. In addition to the search, a 16-year-old boy has been arrested and charged with the double murder. The brutal stabbing deaths of 87-year old Oliver 'Chip' Northup and 76-year-old Claudia Mauphin shocked the tight knit condominium community.  Investigators searched the home of a tenant who moved out of the condo two days after the couple was found murdered.  Calls to the FBI about what may have been found in the home have yet to be answered.