We now have two pairs
Dulcis + Nova (Floyd)
Vera + Steve (Isaac)

Looking at Gabe's clue, Hilda has 2 (Gabe and 1 of the Dulcis + Nova pair) and Olive has 2 (Isaac & Logan) so Vera must be Criminal and Steve Innocent.
Then Steve tells you Nova is Innocent ("not a criminal") so Dulcis is Criminal.

Looking at Bios' clue we know Hilda has 3 criminals (Celia, Maria, and 1 of the Dulcis + Nova pair) so Gabe has to be innocent.

Looking at Ryan's clue, we know Xenos has 4 (Ryan, Terry, Zoe, and 1 of the Vera + Steve pair), so Gabe has to have 4. He currently has 3 (Celia, Maria, and 1 of the Dulcis + Nova pair) so Bios has to be criminal.

Yellow indicates pairs (1 innocent, 1 criminal). Colored dots link pairs, as described below, with the clue that describes why.
Dulcis + Nova (Floyd)
Vera + Steve (Isaac)
Eros + Ryan (Celia & Terry)
Eros + Aion (Maria)
Also a pair where at least one must be a criminal.
Ryan + Vera (Hilda)