Friends, I’m a runner. You knew that. You may not know that I’ll be running the Garmin Marathon this Saturday with a heavy heart and (hopefully) light feet. The route starts and finishes at Garmin’s Olathe headquarters, and comes right through the heart of where I live. If you live here too, we’d love it if you cheered on the 3,000 of us who’ll be running on Saturday. You may also wish to join me in contributing to The One Fund Boston, intended to raise money to help those families most affected by the bombing at the finish line of Monday’s Boston Marathon.