No, I just didn’t know before watching it that it was a true story.
This the scene you’re talking about:
“Details in the scene in which Paul was shown incinerating the victims’ severed hands on a barbecue grill (to remove the fingerprints) were changed; in reality, Daniel Lugo did the grilling, and Lugo used a steel drum with an iron grate laid on top, not a barbecue grill. Lugo tossed Frank Griga and Krisztina Furton’s hands, feet, and skull fragments onto the grate, doused them in gasoline, and began to grill. When Jorge Delgado returned to the warehouse, he yelled at Lugo, who reluctantly agreed to move his operation from in front of the warehouse to the rear alley.”