charged with the 2016 murder of Louis Gumpenberger, the St. Louis County Police Department reopened the investigation. Michael reiterated that he believed his mother's death was accidental. Detective Matthew Levy attempted to get a subpoena for the location of Hupp's cellphone at the time of her mother's death but was unsuccessful. Levy also attempted to organize forensic tests on the balcony railing at the Missouri University of Science and Technology, but the Lakeview Park Independent Senior Living Community refused to provide a railing for testing. A retired homicide detective suggested to KTVI that one of the vertical bars appeared to have been "kicked out". After interviewing Hupp in connection with Neumann's death, KTVI reporter Chris Hayes received an anonymous letter stating, "Dear sirs: I think its [sic] getting a little silly that you keep accusing someone of killing their parent, when its [sic] not true." In November 2017, Mary Case, the chief medical examiner for St. Louis County, changed the manner of Neumann's death from "accidental" to "undetermined". Case stated, "since [Neumann's] death, many things have happened that involved the daughter. And so all of that investigation, including the one in Lincoln County and the one in St. Charles, became pertinent information [...] I was no longer willing to say it could be an accident." The investigation into Neumann's death was not reopened. Murder of Louis Gumpenberger Louis Royse Gumpenberger was a resident of Union, Missouri. He had mental and physical disabilities after a car crash in 2005. Shortly after 12:00 noon on August 16, 2016, Louis Gumpenberger died after Hupp shot him five times in the hallway of her home at 1260 Little Brave Drive in O'Fallon. $900 () was found on Gumpenberger's body along with a note bearing instructions to "kidnap Hupp, get Russ's money from Hupp at her bank, and kill Hupp" and to, "Take Hupp back to house and get rid of her. Make it look like Russ' wife. Make sure knife sticking out of neck" in return for a reward of $10,000 (). As Hupp had placed two calls to 9-1-1 shortly before the shooting to report a burglary in progress, the audio of the incident was recorded. Immediately after the shooting, Hupp voluntarily went to the O'Fallon Police Department. Her first words in the recorded interview were, "Is this going to be filmed? Because I always appear on the news with [KTVI reporter] Chris