Was Leigha Mumby Inspired by Mackenzie Shirilla?

Was Killer Girlfriend a Mackenzie Shirilla Copycat Killer? In this episode Matt Johnson interviews Forensic Psychiatrist Dr. Carole Lieberman to examine the Leigha Mumby case and the striking potential similarities to Mackenzie Shirilla case. A Florida jury took just one hour to find Leigha Mumby guilty in connection with the death of her boyfriend, Daniel Waterman. Prosecutors alleged that Mumby crashed her vehicle into a tree following an argument over Waterman’s alleged infidelity on Super Bowl Sunday in February 2025. 👇 What Do You Think? - Comment below Subscribe to Justice with Matt Johnson for breaking true crime updates, trial coverage, expert interviews and in-depth legal analysis. LINK: https://expertwitnessforensicpsychiat... 🔔 Turn on notifications so you don’t miss our latest true crime investigations and courtroom updates. #LeighaMumby #DanielWaterman #MackenzieShirilla #thecrash #TrueCrime #mattjohnson