INTRODUCTION
NACDL submits this brief, consistent with the collective knowledge and experience of its members who have decades of experience working as defense counsel, including as capital defense counsel, to unequivocally affirm that capital defense counsel has an unflagging and unmistakable duty to conduct a thorough and complete investigation of potential mitigating evidence to present to a jury considering a death penalty. This duty is clearly established within the profession and was clearly established in the late 1990s when Gary Terry was sentenced to death.
Gary Terry’s trial counsel shirked this responsibility. They never followed up on clear red flags indicating that Terry was abused as a child and failed to present readily available and compelling evidence of that abuse. Trial counsel also failed to communicate effectively with their experts, to assemble a well-functioning defense team, or to prepare a coherent penalty phase trial strategy. Proper presentation of Terry’s history of abuse would have been compatible with and significantly strengthened the mitigation evidence trial counsel did attempt to present—that Terry suffers from brain damage—because of the known correlation between childhood trauma and neurological dysfunction.