Outside Kiva

I am hoping for someone who can correctly identify this tree that we found around town. It just so happens, that this shot was taken right outside of the Kiva office. (Kiva is a micro-lending company that assists small businesses in third-world countries.) David has just started to work for them. This tree has an interesting red or white blossom and even more interesting hard nut-like feature that looks like a pitted olive.