Mystery! Motive for Murder

Description from the publisher:

When a body is discovered in the courtyard of a stately English mansion, the weapon and location are obvious; the only questions the investigators need to answer are who and why. Every guest may have a motive, and every one of them has secrets they're trying to hide!

Your reputation as a detective will be assured if you're the one who makes the final arrest in Mystery! Motive for Murder. One by one, you interview and re-interview suspects to establish the strengths of their relationships with the victim. Which of the guests had the greatest motive to commit murder?