Edison 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 | 1 | Tv | S | S | T | 5 | Edison | W | |
| R2 | W | Verena | |||||||
| R3 | Bernd | T | Ca | T | 4S | S | |||
| R4 | 2 | C | C | Dalia | 3 | ||||
| R5 | Grant | S | C | S | S | S | |||
| R6 | S | S | Alex | Tv | C | S | S | ||
| R7 | T | T | C | C | C | S | Carol | ||
| R8 | T | Hugh | C | C | T | T | S | ||
| R9 | Freya | W |