To summit Mount Olympus less than a year after surgery would be a feat for any heart transplant patient.

But Paul Cardall says this is not his big day.

Nine months ago, looking at the behemoth rock face from a hospital window he could barely walk to, Cardall decided to make the epic hike for someone else. Brian Cardall had died a few months earlier, when police stunned him with a Taser during a bipolar episode.

On Wednesday, the anniversary of Brian's death, Paul steps onto the trail. His first major hike in 25 years is in memory of his little brother. Continue reading and see PHOTO GALLERY