Looks like foreign matter in the combustion chamber based on the gouges in the head and piston. I assume it locked up the piston and destroyed the connecting rod bearing. I don't know what the brass/copper piece is, but I'm sure I'll find out. Lots of slop in the connecting rod:
Not sure if photobucket videos work here, but here it goes:
With the amount of debris down in the bottom, I'll be splitting cases and documenting. Just not tonight.