The San Diego County medical examiner's office said an investigator was sent to the scene.
If Seau committed suicide by shooting himself in the chest, it is similar to the way former Chicago Bears great Dave Duerson ended his life. Duerson shot himself in the chest on February 17 -- the method used so that his brain could be examined for symptoms of CTE (chronic traumatic encephalopathy), a trauma-induced disease common to NFL players and others who have received repeated blows to the head.