Heywood wanted to study serial killers, but with his limited resources for travel, he could only interview the one serial killer that was in a nearby prison. he did many in-depth interviews with this serial killer in order to understand the thinking of this individual. this research is an example of.

Case Study

Explanation:

According to my research on different research methods, I can say that based on the information provided within the question this research is an example of a Case Study. This is a research method in which the researcher does an up-close, in-depth, and very detailed study of a specific subject for his/her study. Which is what Heywood is doing with the one serial killer he was able to interview for his research.

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