I've read that dead TM's body was exposed during a rain. I can't remember the time frame his body was uncovered and exposed the blood *could* have washed it off out...
The ME office is just a joke. Someone may have washed TM's hands.
Listening to ME, I got the feeling that the ME shop was not really by the books.
The ME said he had "on respect" his underlings. But, he seemed to know very little about protocols. At the very least, he gave protocols short-shrift. He just did his job and so he had "on respect" of underlings without really checking things out.
What ME is going to tell you to bag evidence, especially wet evidence in plastic bags.
Follow up with staff was not his job, he said.
Exposed to the rain, and the backs of his hands were brushed off in the grass while Z was restraining him.