Alex did it — the only suspect in the room with the victim, outlined in red below.
| C1 | C2 | C3 | C4 | C5 | C6 | C7 | C8 | C9 | |
|---|---|---|---|---|---|---|---|---|---|
| R1 | 1S | C | Elsa | 3W | S | 5 | |||
| R2 | C | T | C | Ca | Floyd | Tr | |||
| R3 | Ca | Dalia | Tr | ||||||
| R4 | Ca | Hana | |||||||
| R5 | 2Cyrus | P | Ca | L | 4 | ||||
| R6 | Ca | Alex | C | ||||||
| R7 | C | T | C | Grant | L | T | T | C | |
| R8 | Bernd | Ca | Ca | T | T | C | |||
| R9 | Ta | Ca | C | C | Vasiliy |