He had been knocked unconscious three times and had experienced other instances of head trauma, including a concussion during his college football years that required hospitalization.
Known for his love of selling cars and his fun approach to the job, MacIver was remembered by those who knew him for his endearing personality and his passion for the auto industry.
MacIver died at the age of 58 in 2012, and post-mortem studies revealed that he had been suffering from "moderately advanced" chronic traumatic encephalopathy (CTE),[5] a degenerative brain disease associated with repeated head trauma.
MacIver's family observed notable changes in his behavior in the months leading up to his death, including erratic conduct and issues with body temperature regulation, which they later learned could be associated with the brain damage caused by CTE.
His family donated his brain, spinal fluid, and eyes for research on early detection of CTE, contributing to the ongoing efforts to better understand and mitigate this condition.