On January 3, 2020, Montgomery announced that he had checked himself into rehab to deal with alcohol abuse. He said that the Stars had made "an appropriate call" in firing him, and that his ouster made him realize he was living a "damaging lifestyle." On January 7, the "Fort Worth Star-Telegram" reported that Montgomery was fired in part due to concerns about his drinking. Nill had reportedly confronted Montgomery on numerous occasions about drinking in public. The Stars had been aware of Montgomery's history with alcohol; he had been arrested for DUI in 2008 during his time at RPI.