1278 n. 8 (11th Cir.2006) (“In 1984, 18 U.S.C. § 4244 was replaced by 18 U.S.C. § 4241.”); 18 U.S.C. § 4241. The right not to plead guilty while incompetent is one of the most fundamental constitutional rights. Drope v. Missouri, 420 U.S. 162, 171-72, 95 S.Ct. 896, 904, 43 L.Ed.2d 103 (1975). The district court must sua sponte order a hearing to determine the mental competence of a defendant “if there is reasonable cause to believe that the defendant may presently be suffering from a mental disease or defect rendering him mentally incompetent to the extent that he is unable to understand the nature and consequences of the proceedings against him or to assist properly in his defense.” 18 U.S.C. § 4241(a); see Pate v. Robinson, 383 U.S. 375, 385, 86 S.Ct. 836, 842, 15 L.Ed.2d 815 (1966) (<HOLDING>). A defendant is competent to plead guilty if
holding that a trial court must conduct sua sponte a competency hearing when the information known to the trial court at the time of the trial or plea is sufficient to raise a bona fide doubt regarding the defendants competence holding in a case considering whether the trial court should have conducted a competency hearing sua sponte that an appellate court may only consider those facts which were before the court when the trial commenced holding that when defendant argued on appeal that the trial justice should have given the jury a sua sponte limiting instruction regarding alleged rule 404b evidence defendants failure to object at trial constituted a waiver of that issue holding that the court can raise res judicata sua sponte even on appeal holding that in admitting evidence the failure of the trial court to give a limiting instruction sua sponte is not reversible error