In this link is a mystery 

https://www.canadianmysteries.ca/sites/robinson/home/indexen.html

which is about Who killed Robert Williamson 

• Prepare a report that responds in three paragraphs which respond to the following questions(i.e., one paragraph for each set of questions):

1. What is the mystery? What is its significance? In other words, why does it matter that we try and understand this mystery?
2. What are some of the responses to the mystery, or the main question involved, that people have given (whether theories from the time of the event(s) or in more recent times)? Is there a response that you find to be most convincing? Don’t feel that you need to come up with the definitive answer to this mystery but I do want to see that you are able to come up with a reasonable response to it.
3. What sources did you find most helpful in understanding what actually happened? Describe these: are they Primary documents? (first hand participants or observers) Secondary documents? Who produced them? What particular perspective might the producer of the document bring to the question?