The trial court improperly denied the defendant the chance to cross-examine the complainant about threats the complainant made against others - including the threat that the complainant would make an accusation of molestation - thus preventing the defendant from presenting admissible rebuttal testimony to show a possible motive for accusing the defendant of sexual molestation. There was testimony that the complainant had suffered from mental illness since the age of 4 and that his mental illness contributed to his acts of rage. The complainant testified that he had become angry when the defendant took back a gift he had given him, and that the very next day, the complainant accused the defendant of molesting him. The record showed that the complainant had threatened to accuse others of molestation. The jury could have found testimony from those threatened by the complainant helpful. Billodeau v. State -PD-0969-07.