ビーチ
犯人:
手掛かりカード
He was beside the boulder.
She was on a carpet.
She was sitting in a chair. She was not on the Beach.
She was on the Beach.
He was beside a chair.
He was alone in the Lifeguard's Tower.
被害者 The Victim. He was alone with the murderer.
犯行現場マップ
主要アイテム
Boulder 
Carpet 
Chair