If you were at Catalyst, you witnessed a powerful moment. If not, you can watch it below. (If you don't have enough time to watch the whole video, start at 3:45 for Jimmy Wambua's interview).
Here's the summary: through Compassion International Mark (a Canadian) sponsored Jimmy in Africa. To Jimmy, this meant life. Now Jimmy himself sponsors a child in Haiti - what an awesome example of compassion at work.
There wasn't a dry eye in the stadium when Jimmy was asked if he'd ever met his sponsor and Mark walked on stage.