30th March 1996 a prison riot took place at Sierra Chica, Olavarria where 17 hostages were killed, with the some of the bodies cremated in the prison bakery ovens. It's also said that the rioters later made empanadas from dead bodies and later fed them to inmates.
I then came across a picture showing one of the mutiny leaders (released 2005) on his YouTube channel showing how to make empanadas, which kind of put me off them for life.
It's a gruesome story.