Editing Pam Hupp (section)

===Murder of Louis Gumpenberger===
On 16 August 2016, Louis Gumpenberger, a physically and mentally disabled man, was shot dead by Pam Hupp at her home in O'Fallon, Missouri. $900 were found on his body alongside a note bearing instructions to abduct and murder Hupp in the same manner as Betsy Faria after forcing her to transfer $150, 000 to Russ Faria's bank account. Hupp claimed that Gumpenberger had attacked her with a knife while she sat in her SUV outside her house and demanded that he take her to a bank and retrieve the money from Betsy Faria's life insurance policy. She had then knocked the knife out of his hand and run inside, shooting Gumpenberger when he pursued her. 

However, police were suspicious of Hupp's claims. Gumpenberger's mental and physical disabilities made police sceptical that he was capable of carrying out the actions Hupp accused him of. The knife allegedly dropped in Hupp's car by Gumpenberger was wedged between the seats in a similar position to how knives in Hupp's kitchen were stored, and Hupp had recently bought a similar knife which was not found in her kitchen. Several people also told police that Hupp, in the days before the murder, had approached them calling herself "Cathy" and offered them $10, 000 to simulate a break-in at her home for TV. Police suspected she had been randomly selecting people with the intent of luring them in, killing them and making it look like they had been sent to kill her by Russ Faria in order to cast suspicion off herself for the Betsy Faria murder.

Hupp was charged with the murder of Louis Gumpenberger. Upon being arrested she attempted suicide by stabbing herself in the neck with a ballpoint pen. Prosecutors declared that they would seek the death penalty due to the completely random choice of Gumpenberger as the victim. Hupp pleaded guilty in June 2019 to avoid the death penalty and was sentenced to life without parole. She was later forced to pay $3 million to Gumpenberger's mother for wrongful death. 

After Hupp's guilty plea, police re-opened the Betsy Faria murder case. She was officially charged with the murder of Betsy Faria on 12 July 2021. She has pleaded not guilty.