He interned for then-Sen. Ben Nelson, D-Neb., and graduated from Creighton University in 2011.

Rich moved to the nation’s capital, where he worked as a research data associate for the polling firm Greenberg Quinlan Rosner before landing at the DNC.

It was 4:19 a.m. Sunday when police officers on patrol heard shots in the Bloomingdale neighborhood. They found Rich lying on the ground with multiple gunshot wounds, including at least one in the back. He was taken to an area hospital, where he died.

Aaron Rich said it appears that his brother was walking home when he was shot and might have been the victim of a botched robbery, although little is known for certain. Detectives have told the family that he had bruises on his knuckles and face.

“There had been some kind of a struggle, but he also had all of his belongings with him,” Aaron Rich said.

Police are offering a $25,000 reward to anyone who provides information that leads to an arrest and conviction of those responsible. Detectives are examining several recent robberies in the area to determine whether any can be linked.