"What an effort!" said Leonard Conroy. "Poor Marty must have done it with his last bit of strength."
"Done what?" askde Captain Black.
"Tried to get help. As I said, I was driving past the country club. You know, the night was still and hot, I thought I'd cool off in the car. Then I saw the flag. It was flying upside down. THat's the international distress signal, so I stopped. And there was old Marty lying by the flagpole. I called for you first thing."
Captain Black examined the body. Marty had been shot once, through the heart. Black stood up. The air was still and hot as he wiped the sweat from his face. It was hot alright -- and there hadn't been a hint of a breeze for three days.
"I just don't understand it," said Conroy, shaking his head.
Black cut him off. "What I don't understand is why you're lying. You had better tell me the truth about this right now!"
~How did Captain Black know that Conroy was lying?~