 and brain damage. Appellant presented this testimony along with anecdotal evidence from family members concerning his cognitive and developmental limitations, his mental health treatment and his experience taking--then discontinuing--medications prescribed specifically for his mental issues. Dr. Musick, a sociology professor, was presented by the defense as an expert witness to discuss the risk factors and events from Appellant's life history which impacted his development. This was offered to explain Appellant's pattern of illegal behavior culminating in his murder of Tia Bloomer. 