They haven't given an actual cause of death. Asphyxiation can be caused by a lot of things, CO2, hanging, manual strangulation, compression, being constricted by a snake, and probably some I'm not thinking of. If it was by constriction, it would be obvious. There would be bite marks, broken ribs, obvious bruising in the area, etc. My point was that if these were present, what reason would there be to wait for further tests, like toxicology? If the case was closed the store owner would have been charged with something. At the very least he would be guilty of endangering children and negligence for not having the snake properly secured. If they're thinking murder, you bet they are going to wait for all tests and thoroughly investigate. I'm thinking that's why we haven't heard anything further and haven't seen anything done yet.