The only info I have on this particular set of images is that it’s from Brazil and that the murder was committed with a machete. At least one very, very sharp machete. Not the dull-as-butter knives shit we are used to seeing in executions. Someone either bought that shit brand new just for hacking people up or he at least knows how to take care of and sharpen his tools. Nothing like the cut of a sharp blade, a well tuned instrument.
But maybe I’m giving him too much credit… Being Brazil, I imagine this was over something stupid and involved alcohol.