Kelli O'Laughlin, MD and Mackenzie Bohlen, P.A, tell their story of treating victims of the Marathon bombings, and explain why they were moved to participate in the Marathon this year.
"It's a long training process. Because it's long, there's moments where you're like, 'why am I doing this?' But as it gets closer, it's pretty easy to remember." said O'Laughlin.
"I want to run to support all the people who carry the badge of first responder to those who just happened to be there and were forced into that role." said Bohlen