Wow - what mayhem! I hope you'll post the prognostication on what
failed first. Congrats on a safe landing.

From your pix it could look like the con rod failed, but were either of
the the rod bolts found? There were some bogus bolts some years back
now removed by an AD and a lot of bogus bolt publicity. I understand
the normal spec for Lycoming rod bolts does not involve tightening only
to a torque, but rather ends with a turn-of-the-wrench method. If the
bolt strength happens to be low, the usual torque-only procedure won't
detect it unless the mechanic is very experienced and suspicious.

Be careful that failed parts don't mysteriously get lost by those that
might have some resposnibility for this mechanical carnage.