From Jacksonville.com:

“’I told him that there was no way I could physically complete a challenge, but he insisted I could,’ said Malloy. ‘I went to prove him wrong with the expectation that I would be performance dropped. After we completed the event I felt like I could accomplish anything I put my mind to and realized the value of a team of people working together and the value of determination. I immediately signed up for another event and so began my love of all things GORUCK.’” 

Read more here.