He went by many different names over the years, but was generally known as “Professor Joe” or “Dr. Joe”.
assitant
I’m afraid I don’t have that information available.
assistant
I'm interested in true crime stories, can you give me some information on the Amazon Review Killer?
user
Do you mean the so-called “Amazon Review Killer”?
assistant
That is correct.
user
Alright, I’ll be happy to provide some information.  The “Amazon Review Killer” was the pseudonym of a serial killer, a husband and father who murdered three women between the years of 2010-2014.  The killer was described by police as methodical, intelligent, and “the most prolific killer in the history of Amazon.com.”
assistant
What was the real name of the killer?
user