Rolfe
Adult human female
wasn't that random if it was in Raffe's house, and it looked like it had been cleaned. Plus the house smelled like bleach. according to police, the blade matched the big cut on victim
How does this fail? Let me count the ways....
One of a double-figure drawerful of knives in Raffaele's kitchen. It hadn't been cleaned. No bleach had been used in the house, or on that knife. The blade is not a match for the victim's wound.
Rolfe.