Here's video of the implosion. I love this kind of stuff! All those timed explosions going off just right, making it so the building falls in on itself from its own weight. There's a bloody science to implosions and... in its own way it's a profound thing of beauty.
By the way, in case you're wondering (which I was too) the Indianapolis Convention Center itself did not get destroyed also! This is making way for an expansion to the convention center (perhaps in time for Star Wars Celebration V?) and the Indianapolis Colts are now playing in the brand-new Lucas Oil Stadium.