CORONER: And that was the last you saw of the deceased?
MORTLAKE (with emotion): The last.
CORONER: How was he when you left him?
MORTLAKE: Mainly concerned about my trouble.
CORONER: Otherwise you saw nothing unusual about him?
MORTLAKE: Nothing.
CORONER: What time did you leave the house on Tuesday morning?
MORTLAKE: At about five-and-twenty minutes past four.
CORONER: Are you sure that you shut the street door?
MORTLAKE: Quite sure. Knowing my landlady was rather a timid person, I even slipped the bolt of the big lock, which was usually tied back. It was impossible for any one to get in, even with a latch-key.