Markham paused to relight his cigar.

“So much for that particular evening,” he resumed. “As soon as I learned the woman’s identity this morning, I put two more men to work on her private life. Just as I was leaving the office this noon the men ’phoned in their reports. They had learned that the woman has a fiancé, a chap named Leacock, who was a captain in the army, and who would be likely to own just such a gun as Benson was killed with. Furthermore, this Captain Leacock lunched with the woman the day of the murder and also called on her at her apartment the morning after.”