In this task, you are given a question. You have to answer the question based on your information.

Let me give you an example: Roman Yakub won first price in a Choral Composition Competition at a liberal arts college founded by who?
The answer to this example can be: William Egbert
Here is why: This is a good example, and output correctly answers the question.

OK. solve this:
Who is a bestselling American writer known for his fictional and non-fictional accounts of police work in the United States, Joseph Wambaugh or Helen Zahavi?
Answer:
Joseph Aloysius Wambaugh, Jr.