A Kentucky man accused of selling human remains on Facebook was arrested on firearms charges after federal agents said they found his apartment in Mount Washington decorated with dozens of human skulls.

Federal agents said they linked James Nott, 39, to a network of individuals who allegedly bought and sold human remains stolen from Harvard Medical Schools morgue , according to the complaint. Six people were charged with trafficking human remains last month when the alleged thefts from the Harvard morgue were first revealed.

According to court documents, FBI investigators reviewed Facebook messages between Nott and Jeremy Pauley, a 40-year-old in Enola, Pennsylvania, who had been charged in the scheme earlier. The two allegedly conversed about selling body parts. Court records show Pauley has signed an agreement to plead guilty to conspiracy and interstate transport of stolen goods. The remains found in Notts home were not believed to be from the Harvard morgue, but he allegedly attempted to sell them to someone connected to the morgue case.

According to the complaint, Nott allegedly sent Pauley photos and videos of skulls he was selling publicly on Facebook, stating that these will be here soon.. not claimed yet.

yeah some of these prices are fucking garbage out there. I dont mind paying up a little for shop stock, Pauley allegedly replied. Makes things look good. How much total for the couple and the last video you sent plus the spines?

According to the federal complaint, Nott had been publicly listing human remains for sale on Facebook under the name of William Burke, an apparent reference to a serial killer in Scotland who sold his victims corpses in the early 1800s.

Authorities conducted a search of Notts apartment on Tuesday and reported finding several firearms, explosives and ammunition, as well as multiple AK-47 assault rifles that were obtained from out of state.