"We don't have a motive on it, but we can say they both have a history in the drug game, but you never know for sure," Cooper said. "Sometimes these guys that sell drugs, they beef over other stuff - women or money or gambling - different things. So we just don't know for sure."
Neighbors reported hearing about three or four shots. Police have recovered ballistic evidence at the scene that would be related to the firearm in question.
Cooper said he recalls some shootings in that neighborhood in the past but nothing recently.
"It's not random. This was the result of an altercation between two specific people. For a specific purpose," Cooper said. "We don't feel like anyone else could be in danger, except for maybe Mr. Adams when it comes to possible retaliation. So we're hoping that maybe he'll turn himself in."
Cooper said they don't say retaliation is possible in every case, but they do believe it's a possibility in this situation.
"We're hoping someone who cares about him knows where he is and gives us a head's up on his location."
Adams is about five feet, five inches and 250 pounds. Those with any information are encouraged to call the Charleston Police Department at 304-348-6460.