Why would they hang me?

For being a nuisance.

So, Gekasan had protection – that’s one thing.
He was blocked for two days in a row – that’s another.

Only the Knight and Renard have protection in the city, and according to the first newspaper, neither of them were blocked. This alone makes him a prime suspect. On top of that, the Orc came for a second time, presumably to finish him off... So, the excuse that the Orc just happened to come back a second time because the protection was broken doesn’t hold water. He’s not a Hydra, a Shocker, or Mr. ISK. Most likely, it’s a Samurai.

Added 2 minutes later

Ugh, he really got to me! All sorts of players were talking yesterday, “Save the Orc!” Argh!
Newspaper:
Vesper - Creator. Seems like she was using automation. Even though she didn’t have a nickname. I can’t fully understand the ND.
The Orc tried to kill Gek’s mafia member. Considering he didn’t die, he’s either a Samurai, or he already benefited from the Samurai achievement (it would make sense for the mafia to do that, as they knew where the Orc would go).
Clue - formal logic (other suggestions)
Shocker kills Creator. Clue - “in recent days, she will give a good answer”?

I agree with everything, except that Vesper was the Creator. Before Vesper died, there was a flash. That’s Delacroix’s ability.