It's irrelevant to him being killed. He was killed because he couldn't be protected. This is very basic stuff and I wonder if you're pretending not to see that to clear yourself.
As I said, you are examining one angle only, that is scummy gameplay. I must've said this phrase about a hundred times by now. Treva was on to something, so you killed him. You planned to use the protection on the previous night thing you keep mentioning as a cloak in case it was brought up.
Of course, there is absolutely no point in blocking anyone else as I am the only night action player left I think. So, you blocked me and killed treva as he was the best candidate of the confirmed townies.
It's even more important, as with most players' posts, a common theme was "I have no idea what to do", and "Why so hard PD?". Treva was the one guy with a straight shooting focus at the start to lynch one (or two) of the investigative roles, so you lynched him. It worked, as clearly no-one else here had a real clue except me. So, you made up this result to eliminate the one other guy who was on to something, the one guy who put in a lynch on you.
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If the doctor reveals who they protected the previous night, that person becomes the most likely target the following night.
I got annoyed in the last game when Aditya as doctor revealed that he had protected me and guess what? I was killed the next night.
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And if I was mafia Aditya would have died on night 1.
No he wouldn't have, you are not backing it with any reasoning. I explained why I would've killed you. So why are you still here? Since I'm not Mafia!
Even last game, Aditya didn't mention that in his role PM it said that he couldn't use his role two days in a row, we can assume it's the same here.
Either way, I'm not going to believe a word RPHKR says since he is Mafia as well.