Despite the difficulties of prosecuting a ten-year-old case, Prosecutor Burrell Ives Humphreys decided to try Carter and Artis again. To ensure, as best he could, that he did not use perjured testimony to obtain a conviction, Humphreys had Bello polygraphed—once by Leonard H. Harrelson and a second time by Richard Arther, both well-known and respected experts in the field. Both men concluded that Bello was telling the truth when he said that he had seen Carter outside the Lafayette immediately after the murders.