Pam Hupp

Pamela Marie Hupp is an American woman who in 2016 murdered Louis Gumpenberger in her home in O'Fallon, Missouri, a crime for which she is serving a life sentence. The O'Fallon Police Department believe Hupp murdered Gumpenberger as part of a plot to implicate Russ Faria in the 2011 murder of his wife, Betsy Faria, a crime for which he was convicted in 2013, in part due to testimony from Hupp, and subsequently exonerated in 2015 after evidence implicating Hupp as the perpetrator of the murder was permitted to be submitted. The murder of Betsy Faria has never been solved; the investigation was reopened in June 2019. Hupp has also been investigated in connection with the 2013 death of her mother, Shirley Neumann, which was originally judged to be an accident before being changed to "undetermined" in November 2017.