NAME: Patricia Wood
AGE: 52
RELATION: She teaches Maths at the same school.
MOTIVE: Richard and Patricia were the two main candidates to become the new School Director next year.
NAME: Michael Sheen
AGE: 21
RELATION: Richard's ex-student.
MOTIVE: He wrote a book and dedicated it to Richard. However, Richard laughed at his book and told his colleagues and students that it was so boring he couldn't even finish reading it.
NAME: Lily Simmons
AGE: 15
RELATION: She studies at the same school.
MOTIVE: Last year Richard caught Lily cheating in the final English exam. Lily, who is an A student and had never failed a subject before, fell into a depression.
NAME: Peter O'Flaherty
AGE: 50
RELATION: He works as a caretaker and gardener at the same school.
MOTIVE: They had quarreled repeatedly in public because he made a lot of noise when working in the playground or gardening and Richard couldn't teach properly.
NAME: Louise King
AGE: 30
RELATION: She works as an English teacher at the same school. She and Richard went out together at university.
MOTIVE: She was still in love with him but Richard didn't love her back.