Family members of Marcellus Williams say they have received death threats since the State of Missouri executed him on Tuesday. People made threats via phone calls, emails and anonymous social media messages on Wednesday, when the family held a Janazah, a memorial service, for him, said Shai Kaye, a representative for his son, Sadir Marcellus Williams. She said the Islamic Foundation of St. Louis, which handled the service, instituted a lockdown after also receiving threats.