Mafia 30. Yakuza Clans war.

I tend to believe that neither Lizard nor his killer is ЧД; otherwise, there would be references to it. I personally accept the version that Lizard was a vagrant, and he was killed by an ordinary mobster, as the most plausible and in the absence of perfectly substantiated options.

I also lean more towards this version; otherwise, where is the hint that Lizard was a detective? It is quite possible that the trash can, in which the vagrant Lizard was rummaging in search of something to eat, as someone suggested earlier, is a hint at Lizard's role, but on the other hand, what else can be found in alleys besides trash cans, or maybe it's just part of the description of events and nothing more; we need to think about it...

I don't think Rhev was high while writing the newspaper.

Who knows...

Added 1 minute ago

No one has ever stood up for me like that! Thank you!

They're afraid of being exposed.