Webdec 21, 2016 · george edmond walker was sentenced to 20 years in federal prison for voluntary manslaughter and unlawful removal of a dead body. He buried and moved the. Weboct 7, 2015 · marshall scott dent, a seminole nation man, went missing in december 2013 and was found dead in january 2014. George edmond walker and anne marie johnson. Walker was convicted of voluntary.