most likely the liquid coming out of the bottom was a mixture of oil and anti-freeze/water. There are many areas of an engine where the water jackets are very close ( cylinder bores, intake/exhaust ports) and with a rod failure, be it bolt or bearing, things get slung around at such a high rate of speed, I speculate some broken part busted a hole in a water jacket and therefore you see oil/antifreeze/water mixture!
Jeff