There is no UA murder list.

I think theyre referring to https://en.m.wikipedia.org/wiki/Myrotvorets

some of whom have been murdered shortly after appearing on the list.

there are thousands people on that list, many are participating in questionable activities, of course some got murdered, but majority just arrested and put to trial.

Isn't Yulia Tymoshenko supposedly on that list?

Yet not only she's still in parliament but she still running one of the opposition parties there.

[citation needed]

citation not usually needed for random fantasy in internet.

Person who made allegation is supposed to bring proof.