The study found nearly 50 percent of both boys and girls reported traumatic brain injuries that resulted in a loss of consciousness, amnesia or both. And they said 55 percent of those injuries were caused by assaults.
An estimated 60 percent of adult prisoners have a brain injury, according to a study of prisoners in South Carolina.
http://www.npr.org/templates/story/story.php?storyId=3045728...
The US justice system has become extreme in the pursuit of punishment vs treatment and rehabilitation.