
Swimmer and Navy veteran Brad Snyder is in training for this year's Paralympic Games in Rio. After an accident in Afghanistan, his life took an unexpected turn.

Snyder grew up in St. Petersburg, Florida, the oldest of four children.

As a young boy, he idolized his grandfather who was a World War II veteran.

Snyder has been a competitive swimmer all his life. But as he grew up, the dream of following in his grandfather's footsteps made him choose the path of joining the U.S. Army.

He was deployed overseas twice, first to Iraq, then to Afghanistan to work as an explosive specialist. But on September 7, 2011, a hidden explosive device detonated near him as he was clearing a path urgently needed by medics trying to reach two injured comrades.

Snyder, then 27, lost his sight and had multiple operations on his face and eyes. From then on, he relies on his service dog, Gizzy, to guide him on the streets of Baltimore, where he now lives.

In the water, Snyder can move more independently and navigate using the lane ropes. Forced to adjust to a whole new way of living, he started spending more time in the pool, a place where he felt at home. Shortly after his accident, he begun training for the forthcoming Paralympic Games.

Exactly one year to the day since he was blinded in Afghanistan, Snyder took home the gold in the Men's 400m Freestyle at the London 2012 Paralympic Games. He left London with one more gold medal and a silver.

Since then, he has a whole new life. When not training for the games in Rio, he works to motivate others to overcome difficulties. Looking back, Snyder says he sometimes doesn't believe his own life story. "It seems very surreal. Even the memories are very -- they seem like something that was put into a movie."