Sean and I have been friends since freshman year of high school. He's one of the most intelligent and giving people I know and I never think twice about supporting him.
He's running a marathon for Fisher House. Here's a description of what they do:
Because members of the military and their families are stationed worldwide and must often travel great distances for specialized medical care, Fisher House™ Foundation donates 'comfort homes,' built on the grounds of major military and VA medical centers. These homes enable family members to be close to a loved one at the most stressful times - during the hospitalization for an unexpected illness, disease, or injury.