list down all the clues from scene 5

My copy only has chapters so I'm hoping the scenes in your copy match.

Ames recounts his version of the events of the night of Douglas's murder. He had worked for Douglas for about five years and found him a friendly employer. Douglas never seemed very restless except for the day of his murder. That night Ames did not hear the shot because he was in the pantry at the time, but he did hear the bell ringing wildly. He saw Mrs. Douglas coming down the stairs and Mr. Barker urging her to go back. She was not screaming or crying.

The housekeeper was nearer to the front of the house but only heard the bell ringing. She was hard of hearing and may not have heard the shot because of that. She saw Mr. Barker, pale and anxious, coming out of the study. He told Mrs. Allen to stay with Mrs. Douglas, and she did.

Cecil Barker speaks with the men next. He adds nothing to the account that he’d told the other detectives. He sees the bloodstain as conclusive, but does not know how the killer escaped. He speaks of Douglas next, explaining that they met when Cecil was a young man in California. Douglas emigrated there and the two became partners at a mining claim. Douglas sold his share and moved to England; when Barker moved there as well, they renewed their friendship.