Jason "Jam Master Jay" Mizell was shot dead in Queens, New York, in 2002. Two other men have been charged in connection with the death.
A third man was seen entering the house where Mizell died, according to court documents. The 49-year-old man has been linked to the crime scene, the documents say. Run DMC was formed in 1981 and inducted into the Rock and Roll Hall of Fame in 2009. The two remaining members temporarily reunited in 2012.