I spent the five happiest years of my life in a morgue. As a forensic scientist in the Cleveland coroner’s office I analyzed gunshot residue on hands and clothing, hairs, fibers, paint, glass, DNA, blood and many other forms of trace evidence, as well as crime scenes. Now I'm a certified latent print examiner and CSI for a police department in Florida. I also write a series of forensic suspense novels, turning the day job into fiction. My books have been translated into six languages.
I have no idea. It could be either. It doesn't matter how many times they were shot. As far as I know it would only matter if their eyes were open or not at the moment they died, not what happened before or after they died.
I use it the way you use your computer without writing code. I have chemicals that I use to process for prints, but we just purchase them. There are a few reagents we mix ourselves. At the coroners office we mixed almost all ourselves. A toxicologist, on the other hand, would use it every day.
Get everybody out of it, and then take pictures.
I'm sorry but I wouldn't have any idea. They didn't even have forensic science degrees when I went to school.
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Oh, sorry, for some reason I thought you meant that the guy had done it himself. In that case it is quite possible of course. The scene would be very bloody, of course, with all those injuries. The bodies would bleed out but probably more from gravity than from the heart pumping because they would have died so quickly. (At least I’m assuming the attack was over quickly.) The heart is about the size of the person’s fist and, obviously, would be blood covered after removal. A brain is grayish white and convoluted and other than some blood smears would look fairly neat, if the entire thing was removed carefully as one would at an autopsy. The killer would need a scraping tool and the expertise to do that. Otherwise it would probably look pretty mangled, but still largely a grayish white color.Hope that helps!
Gunshot residue can actually refer to two things, gunpowder that flies out of the barrel with the bullet and can land on the victim, and primer residue that can leak out of the back of the bullet cartridge and spray out onto the shooter's hand. But it can also get on the gun or nearby surfaces or people so presence of it on hands does not prove someone fired a gun, and it can wipe off easily so absence of it doesn't prove they did.
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