In Freeman v. State, 167 S.W.3d 114 (Tex. App.--Waco 2005, no pet.), based on numerous medical records, a psychiatrist testified, posttrial, that the defendant may have been legally insane at the time of the offense. Freeman, 167 S.W.3d at 118-19. The appellate court found that trial counsel provided ineffective assistance because trial counsel "conceded that he did not investigate the defendant's mental health history, even though trial counsel knew the defendant had a history of mental health issues." Id. at 119.