The epidemic of brain damage in former professional football players is staggering and research is mounting up. Junior Seau's untimely death begs the question: Should more be done to reform football?

Since news broke that the former Chargers linebacker killed himself Wednesday with a gunshot to the chest, there has been speculation about whether repeated hits to his head over his 20-year pro career could have been a contributing factor.

While there was no evidence Seau suffered from chronic traumatic encephalopathy (CTE), a degenerative disease brought on by multiple concussions, friends and family have stepped forward to say the legendary linebacker suffered a number of hits to the head during his career.

The article concludes with analysis by CNN chief medical correspondent, Dr. Sanjay Gupta, and background on Junior Seau's career.

Read the full article for video of what is believed to be Seau's last interview.