Audio Books Downloads

Let me try to answer this kindly. To know the answer to your question, you need to understand copyright law. "One Last Shot" is a book that was published in 2002, therefore it is still under copyright. You won’t find a (legal) free download of an audio book version of it.
More bad news for you, there is not a legal audio book version of it. Not in digital format or on tape, so there is no way for you to get this book in audio (assuming you are referring to "One Last Shot" by Mitchell Krugel).

After so many years (don’t ask me how many, it’s kind of confusing) copyright expires, but if someone makes an audio recording of a book, it has its own copyright that is not expired. Fortunately, some volunteers are recording public domain (expired copyright) books and releasing those as audio books, so if you want to listen to a classic, you can get some MP3s at librivox.org.