Nelson Standifer was 27 and lived in Upper Marlboro when he was shot and killed on September 18, 2019. Police found him about 12:15 p.m. in the parking lot of a convenience store in the 8200 block of Martin Luther King Jr. Highway in Glenarden; he suffered multiple gunshot wounds and was pronounced dead at the scene.

Investigators concluded the killing was not random but stemmed from an ongoing dispute involving Standifer and two acquaintances. Homicide detectives identified 31-year-old DeAndre Stevenson of Riverdale, Georgia, and 25-year-old Ryan Smith of Landover as primary suspects. Both were charged with first-degree murder and related counts; Smith was held in custody on no bond and Stevenson was taken into custody in Georgia pending extradition to Prince George’s County.

Anyone who knew Nelson, saw him that day, or has information about the dispute or the shooting is asked to come forward.