** REMEMBER... The bottom line is to address those 5 areas: 1. Background 2. Unreasonable theories 3. Reasonable theories 4. What still remains a mystery 5. YOUR own theory
***You are not just describing your mystery, there should be a purpose to everything that you are telling the audience. It should fit into one of those 5 areas listed above - not just eyewitness accounts (those might help to prove the theory though). You can do it!!