But then there are uncertain characters like Genesis and Argento still running around. Either of those two could have rescued Rosso and possibly Azul. There's just way too much we don't.
Rosso The Crimson
Rosso the Crimson is the third member of the Tsviets. A sadist who takes great pleasure in killing and is responsible for Vincent's loss of the Protomateria. Rosso utilizes a dual edged blade.