Carol 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 | 3T | B | T | Sh | 1Dylan | P | P | ||
| R2 | B | Ca | Ca | M | Anna | ||||
| R3 | Ca | Ca | Ca | Floyd | M | ||||
| R4 | Ch | Elsa | Sh | 5 | |||||
| R5 | Bella | T | Tv | Tr | M | ||||
| R6 | 4C | C | W | Hugh | M | ||||
| R7 | Carol | C | 2 | S | |||||
| R8 | C | S | Grant | ||||||
| R9 | W | C | Valerie | C | S |