A letter containing white powder was sent to the show’s set days before Smollett was the victim of an alleged hate crime. Anthony Guglielmi, Chicago police spokesman, said the HAZMAT Unit responded to the mystery powder. It was determined to be aspirin, but no futher details on the content of the letter were released. Smollett's assault involved his attackers pouring an unknown chemical on him and placing a noose around his neck. The police have released a photo of two people who are wanted for questioning concerning the case. Smollett recently spoke out for the first time since the attack. Jussie Smollett, to 'Essence' Jussie Smollett, to 'Essence'