Nightline, ABC News on Instagram: "@Nightline co-anchor @jujuchangabc reports on the surprising case of Vincent Jackson. Nightline has been reporting on CTE and its impact on NFL players for years now and while Jackson played for more than a decade in the NFL, his widow tells us in her one and only TV interview, that he thought he had nothing to fear. Now months after his death, she reveals his shocking diagnosis. #nfl #cte #football #interview #abc"