BMW M5 - Blown ENGINE Teardown What went wrong ?

In this video I want discuss with you guys what went wrong with this S63TU engine and what could be done to avoid the so dreaded catastrophic failure.
This engine is out of a 2013 BMW F10 M5 and had traveled 100.000kms before it seized. It was on a stage 2 map producing around 700HP according to the owners.
Stay tuned for episode number 2 where I will update you guys with a plan on exactly how we are going to proceed with this engine rebuild.
If you are unaware of the twin turbo V8 BMWs, the S63 and the N63 are pretty much the same engines with a few different components such as turbos, manifolds, cams - the assembly and dismantling of these engine are the same.