(U.S. Marshals Service via AP file) This undated file image provided by the U.S. Marshals Service shows Blane Barksdale, 56, and Susan Barksdale, 59. Authorities believe husband and wife fugitives wanted in the killing an Arizona man have been able to stay under the radar for more than two weeks because they are getting help from multiple people. They have been added to the U.S. Marshals Service’s 15 Most Wanted list.