Cassie is originally from Mahomet, Illinois. She attended Southern Illinois University Carbondale, where she graduated with a Bachelor of Arts in Anthropology and triple minored in Criminology, Forensic Science, and Environmental Studies. After earning her undergraduate degree, she attended the University of Illinois Chicago School of Law, where she graduated in 2025. During law school, she was a member of the Review of Intellectual Property Law and served as an Articles Editor on the board.

Cassie currently resides in Louisville, Kentucky, with her fiancé and dog, Kona. In her free time, she enjoys hiking with Kona, reading, and spending time with her family.