Police arrested three men accused of selling thousands of pills of meth-laced “Adderall” on various darknet marketplaces and mailing them through the United States Postal Service through a fictitious business called “Professional Paper Filing Inc.” that listed a real return address of an uninvolved business. That business then told police that it was repeatedly getting packages of pills in the mail as “return to sender.”

The men face a maximum possible penalty of life imprisonment.