similarly concluded that Pinholster’s childhood head injuries resulted in organic, pre-frontal brain damage that changed his personality and explained his aggressive, violent, and antisocial behavior, while Dr. Stalberg characterized the injuries as possibly “devastating” and likewise connected them to Pinholster’s epilepsy. This additional medical evidence would have helped counter the State’s aggravation case in three respects. First, evidence that Pinholster’s brain damage may have influenced, or even caused, his behavior at the time of the crime may have led jurors to conclude that he was less morally culpable at the time of the offense, and at least one juror may have been inclined to refrain from voting in favor of a capital sentence. See Wiggins, 539 U.S. at 537, 123 S.Ct. 2527 (<HOLDING>). Evidence of organic brain injury in other
holding that prejudice is established if there is a reasonable probability that at least one juror would have struck a different balance between life and death holding that ineffective assistance of counsel occurs when there is deficient performance and prejudice which is a reasonable probability that but for counsels unprofessional errors the result of the proceeding would have been different holding that in order to show prejudice defendant must demonstrate that there is a reasonable probability that but for counsels unprofessional errors the result of the proceeding would have been different holding that to establish prejudice there must be a reasonable probability that but for counsels unprofessional errors the result of the proceeding would have been different holding that to establish prejudice sufficient to warrant finding of ineffective assistance the defendant must show that there is a reasonable probability that but for counsels unprofessional errors the result of the proceeding would have been different