A 15-year-old wearing a clown costume was taken into custody Monday night after police investigating a fatal stabbing in East St. Louis, Illinois, identified the teenager as a suspect. According to NBC News, East St. Louis police identified the juvenile as a suspect after officers arrived at the scene of the homicide. Illinois State Police acknowledged that footage of the suspect wearing the clown costume has been widely shared on social media. The homicide has shaken the East St. Louis community, where investigators continue gathering evidence and interviewing witnesses. The investigation remains active as law enforcement agencies continue collecting evidence surrounding the fatal stabbing of John Wesley Allen Sr. in East St. Louis.