Alonzo Adams, the of father of former NFL defensive back Phillip Adams, is filing a lawsuit against the college where his son played football.

Adams fatally shot six people just over two year ago, before killing himself. An autopsy later revealed that Adams suffered from Chronic Traumatic Encephalopathy (CTE), a degenerative brain disease that some research has suggested is linked to head injuries and blows to the head.

CTE has also been shown to cause violent mood swings, and memory loss in some cases. Adams' father is arguing that his son's alma mater, South Carolina State University, failed to adhere to protocols. He also believes the university did not have enough highly trained staff members available to treat the sustained head trauma that Adams suffered throughout his college football career.