You will need to identify the killer and give a brief overview of their life, their killings, and their apprehension (or lack thereof). Then you will need to detail the methods and intricacies of their acts as relates to how you would classify them—the type of killer that they were: Visionary, Missionary, Hedonistic, etc. In doing so consider their life—health and genetics, family history and rearing, social factors—and attempt to theorize what led to their actions. Lastly, consider how this knowledge aided in, or was developed through, police investigation and their apprehension.