Overall, I'd say it's a good essay. However, I do have some suggested changes.
First, what does the title have to do with the story? This story did not take place in fifteen seconds. Sure, the handshake part at the beginning did, but that's only a tiny bit of the essay. If that's how you're going to title your story, you should make that part longer and more dramatic.
Also, this:
Little did I know it at the time,
The "it" is grammatically necessary.
way - being a servant-leader and using himself as an example to us.
This probably happened when you pasted your essay in this forum, though.
Also, "using himself as an example to us" sounds a bit awkward. You could be more direct by saying: "being a servant-leader and role model to us."
To be completely honest with you, I disagree with the premise of that whole sentence. Being a servant-leader and using yourself as an example are not unusual ways of teaching a group of boys to be leaders. But it's your essay.
I think you should introduce the bible quote better. Was it your confirmation verse? Was it Craig's catchphrase? You need to give it some kind of importance other than what it says. It seems just randomly thrown in there.
Because of Craig's friendship and leadership, I learned to focus on the value of being a servant-leader. As a result, I served at Brother Bill's Helping Hand volunteering in the poorest community in Dallas.
I would delete "As a result" from the second sentence here. You already said "Because of," so it sounds redundant.
It's a well-written essay, though. Good luck at Texas A&M!