"In December 2018, The Tampa Bay Times reported that the guitarist had called relatives speaking about extraterrestrials arriving and "the rapture," before his house burned down. As the headline states, the investigators found 80 firearms (50 of which were shotguns), weapon parts, and the three skulls. O'Brien had broken into a neighbor's home with a knife, where he was later tased by an officer. His house caught fire shortly after, and explosions caused by ammunition made it difficult for firefighters to put out the fire."

He had, indeed, committed a crime. Not a gun (or presumably skull) related crime, but a crime nonetheless.