Pavelich was arrested on August 15, 2019, after allegedly assaulting and seriously injuring a neighbor with whom he had earlier been fishing. He was charged with four felony counts: second- and third-degree assault, possession of a short-barreled shotgun, and possession of a firearm with a missing or altered serial number. On October 28, Pavelich's upcoming trial was suspended and he was found incompetent to stand trial by Cook County, Minnesota District Judge Michael Cuzzo who said Pavelich "lacks the ability to rationally consult with counsel, is incapable of understanding the proceedings, and is incapable of participating in the defense due to mental illness or deficiency." Cuzzo initiated civil commitment proceedings. On December 4, Cuzzo ruled that Pavelich was mentally ill and dangerous and ordered him committed to a secure treatment facility.