A Pennsylvania man was arrested Thursday after police said a human brain was recovered from under his home porch, which he used for smoking marijuana.

Joshua Long, 26, was charged on Thursday after his aunt found a human brain kept inside a Walmart shopping bag beneath the porch of Long's trailer-home, The Washington Post reports. The aunt contacted Long in prison to ask about the brain and he told her it belonged to him and he used the embalming fluid to get high.

"The defendant related that he knew it was illegal to have the brain and that he and (another man) would spray the embalming fluid on 'weed' to get high," Trooper John Boardman told the Associated Press. WPMT added the brain was real and was kept for teaching purposes before being stolen.

"At this point now we're just trying to figure out where it came from," Trooper Robert Hicks told WPMT. "We're hoping that if anyone is missing a human specimen brain to bring it to our attention and maybe we can return it to its rightful owner."

According to The Washington Post, marijuana is “commonly laced with PCP and/or embalming fluid, both of which produce a hallucinogenic effect.” It adds that people who used the drug have been reported angry and paranoid with an “increase in women’s sexual appetites.” Long is in prison on several burglary convictions, but faces new charges of misdemeanor abuse of a corpse and conspiracy to commit abuse of a corpse.

Read more at The Washington Post.