e held that "counsel's decision not to introduce evidence of neurological impairment (i.e. organic brain damage) as mitigating evidence at the punishment phase constituted reasonable and protected professional judgment" because evidence of organic brain injury is a "double-edged sword." Id. at 000; see also Kitchens v. Johnson, 000 F.0d 000, 000-00 (0th Cir. 0000). 