four in the morning
`` But I could find no trace of the poison left on the knife blade . There was no mark on the body to show how the poison was administered . '' `` At what hour did death occur ? '' `` Between three and four in the morning , judging by the condition of the body . '' `` Was there any indication , Doctor , of resistance on the part of the deceased ? Did he make an effort to defend himself . '' `` No , Judging from his expression and the condition of the muscles I should say that Mr. Spencer never knew what killed him , never knew even that his life was threatened . ''