Had the man’s injuries been caused only by being thrown through the windshield, there would have been no blood on the front seat of the car. Therefore, the Professor knew the blood on the seat had been caused by injuries to the man, with probable murderous intent, before he was thrown through the windshield.
His assailant had killed him, started the car, and had then hopped off the running-board, hoping the wreckage would cover the murder.
Forethought we may have, undoubtedly, but not foresight. Napoleon.
[29. Easy Money]
Wilkins said he saw the burglar pick up a stack of ten- and twenty-dollar bills from the table in the center of the large library.
Had he not been guilty, he could not have known what the denominations of the bills were. It would have been impossible to have determined this from the doorway.
An unconscious slip on his part.
If you are doubtful, just try to determine the denomination of a stack of bills on a table in the center of a large room, from the doorway.
For any man with half an eye,
What stands before him may espy;