David Greenwood's death dominated our time at Eden-Olympia, hovering above the artificial lakes and forests like the ghosts of Princip over Sarajevo and Lee Harvey Oswald over Dallas. Why this dedicated children's doctor should have left his villa on a morning in late May and set out on a murder rampage had never been explained. He had killed seven senior executives at Eden-Olympia, executed his three hostages and then turned his rifle on himself. He had written no suicide note, no defiant last message, and as the police marksmen closed in he had calmly abandoned himself to death.