audrey bolte , who finished runner-up in miss usa , told prosecutors she was looking forward to seeing poston , 29 , at a bar to play pool and drink on october 12 , 2012 , but he failed to arrive .
shayna hubers had shot him six times at home - during which she allegedly ` cackled ' with glee claimed a cellmate of the accused , who claims the 24-year-old confessed to her while behind bars .