Brian V. Cooper of the District was shot and killed early Monday morning in Prince George’s County. (Courtesy of Tameika Wilson)

Cooper, 20, of the District, was fatally shot outside a Shell gas station in the 8300 block of Central Avenue in Capitol Heights early Sunday morning — just hours after a Domino’s delivery driver was gunned down taking a pizza to a Seat Pleasant apartment complex.

The cousin, Tameika Wilson, 28, said she feels terrible for that delivery driver — who was apparently robbed — but says she wants to make sure people know he was not the only “good soul” killed in Prince George’s County between Sunday night and early Monday morning.

“This happens all around,” Wilson said. “[Cooper] was very jolly and happy ... That’s why it was so shocking where someone would take his life.”

Police have said they are investigating whether Cooper’s shooting stemmed from an altercation at the nearby MSG night club, where Cooper was before stopping at the Shell station. Wilson said family members had talked to people inside the club, and those people said Cooper was not involved in any of the fights.

Family members were scheduled to meet with detectives Tuesday, she said.

“We don’t know what this extended from,” Wilson said. “As far as I know and what we’ve been told, he was not involved in any of the altercations that happened at the nightclub, so we really don’t know what happened.”

Wilson said Cooper was like a brother to her because they were raised in the same household. He lived with his mother in the District, Wilson said.

“I don’t think he deserved it, because he had a great heart, and to just shoot him in the heart and kill him, I don’t think that was fair at all,” Wilson said. “What their motive was, we don’t know.”

Anyone with information is asked to call Crime Solvers at 1-866-411-TIPS (8477).