"I am," promptly.
"Please relate what you know of his—difference with Mr. Burrill?"
"What I—know."
"Yes, sir."
"Why, I don't exactly know anything"
"Why, sir, did you not witness a meeting between the two?"
"I—suppose so."
"You suppose!"
"Well, I can't swear that the man I saw knocked down, if that is what you mean, was Burrill; it was night, and I did not see his face clearly."
"You believed it to be Burrill?"