Really bad wreck!

Hey I just saw a really bad wreck on 59 going south about 20 minutes ago (right by plazAmericas) or Colorado strip club area. Traffic was backed up for a good 15 minutes. Possibly a fatality involved. Anyone else see that? Anyone know what happened?? One car looked like it was split in half and another was on its roof. Glass and debris were everywhere! Lots of cops and wreckers too.