The colonel shook his head.
"That I can't tell you, sir," he said. "I should like to oblige you but I have no more idea of what his name was than the man in the moon. I believe he was in India, because letters from India used to come to Gregory."
"Was Gregory his name?"
"His Christian name, I think," said the colonel after a moment's thought. "He went wrong at college and was sent down. Then he went to Paris and started to study art, and he got in trouble there, too. That's as much as he ever told me."
"He had no brothers?" asked the commissioner.
"None," said the colonel emphatically. "I am certain of that, because he once thanked God that he was the only child."
"I see," the commissioner nodded; "you have formed no theory as to why he met his death or how?"
"No theory at all," said the colonel, but corrected himself. "Of course, I've had ideas and opinions, but none of them has ever worked out. So far as I know, he had no enemies, although he was a quick-tempered chap, especially when he was recovering from a dose of 'coco,' and would quarrel with his own grandmother."
"You've no idea why he was in London? Apparently he did not live here."