Four Different Blood Types in a Crime Scene

There's an unequal distribution of blood throughout this crime scene. The four distinct blood types was beneficial because they were able to point exactly where the blood was at each. One possibility is that he has a stab wound in which has penetrated into his thoracic cavity and part of first aid when you have a sucking wound. And maybe his first thought was, Oh God, you know, my lung is collapsing. Now I need to put the glove over it. So there's an innocent explanation under the circumstances, but at the same time, we've also got the word pig written apparently by gloved fingers. There's a fragment of the same type of glove found in that proximity of that.