Pieces of steel in cylinder??

Do you all think its bearing material?
That crank journal should be destroyed if that was the case.imo
Who put it together, that is the question I wanna know. Measure the crank and see if the bearings are even matched.
Muat'a been a loose std someone put a .010 under bearing into to do this kinda damage .

"Motor ran great till one day"

Fishy AF. Imo