Demetrius John Dell Grayson, a 37-year-old African-American male, was fatally shot in Milwaukee, Wisconsin on Monday, September 23, 2013. The incident occurred shortly after 4:30 a.m. in the 2800 block of North 33rd Street, near the intersection of 33rd and Hadley on the city's north side. His death was classified as a homicide.
Born on June 8, 1976, Demetrius was known affectionately by the nickname "Key Man," a name he earned at the age of three due to his fascination with playing with
keys. He was a father to four children. At the time of his death, Grayson was employed as a material handler for Pace Industries and had also worked as a machine operator for CTS Technology. He was a resident of Milwaukee, where he had received his formal education through the Milwaukee Public Schools system.
The investigation into Demetrius Grayson's murder is ongoing. As of late 2025, no arrests have been made in connection with his shooting, and no suspect or suspects have been publicly identified. His case remains an unsolved homicide within the Milwaukee Police Department. Funeral services for Grayson were handled by the Northwest Funeral Chapel, and he was laid to rest at Graceland Cemetery in Milwaukee.