most certainly took delib'rate aim, what? Furthermore, had he not been an expert shot, and had he pointed the gun at the breast without taking delib'rate aim, he would, in all prob'bility, have fired more than one shot."
Markham pondered.
"I'll grant that, on the face of it, your theory sounds plausible," he conceded at length. "On the other hand, the guilty man could have been almost any height over five feet, ten; for certainly a man may crouch as much as he likes and still take deliberate aim."
"True," agreed Vance. "But don't overlook the fact that the murderer's position, in this instance, was a perfectly natural one. Otherwise, Benson's attention would have been attracted, and he would not have been taken unawares. That he was shot unawares was indicated by his attitude. Of course, the assassin might have stooped a little without causing Benson to look up. . . . Let us say, therefore, that the guilty person's height is somewhere between five feet, ten, and six feet, two. Does that appeal to you?"
Markham was silent.
"The delightful Miss St. Clair, y' know," remarked Vance, with a japish smile, "can't possibly be over five feet, five or six."
Markham grunted, and continued to smoke abstractedly.
"This Captain Leacock, I take it," said Vance, "is over six feet—eh, what?"
Markham's eyes narrowed.
"What makes you think so?"
