A definite conviction of guilt derived from a thorough examination of the whole case. Hopt v. Utah, 7 S.Ct. 614, 120 U.S. 439, 30 L.Ed. 708. A settled or fixed conviction. Davis v. State, 8 Ala.App. 147, 62 So. 1027, 1033. People v. Castro, 68 Cal.App.2d 491, 157 P.2d 25, 30.