There are so many reasons why people become serial killers. However, it is quite uncommon to meet a murderer who is willing to share the sensitive information with the authorities in order to have some financial gain and risk getting caught. Exactly this happened with Robert Maury, a serial killer who would often call the anonymous witness hotline and reveal where his victims are buried in order to collect the reward. Perhaps he could have gotten away with it if he managed to control himself and report just one victim. But Maury got greedy, knowing that he could earn even more money from providing the information to the investigators. Thanks to the phone operators who found this man and his phone calls very suspicious, Robert Maury was held by the police and subsequently charged with multiple murders. It was after his third call to the witness hotline when the investigators decided to trail him and observe his behavior. He was on their radar prior to the arrest, but they couldn't find any physical evidence which could link him to the murders. The law enforcement managed to put an end to a dangerous man and his string of murders. Maury would clearly do anything in order to earn money and continue killing innocent victims all over the country.