The family of a young man murdered at a Blue Hill Avenue gas station in 2011 is offering a $10,000 reward for information leading to his killer's arrest.

Daniel Bunch, 22, was shot to death on Oct. 8, 2011 at the Mobil station in Mattapan Square. Police say he was accosted by a suspect who was then driven from the scene. Despite what police say were "plenty of witnesses at the scene," the case remains unsolved. In a video (see below) posted on the Boston Police website today, his mother and a police described their efforts to find the killer— and their frustration in not yet bringing the shooter to justice.

"We have a strong target," said Sgt. Det. James Wyse. "We just need that one or two witness to help us make the arrest of this individual."

"No one has come up to say I actually saw the person who shot Dave," says Maribel Pomades-Bunch. "That person cannot get away with this. If he hurt my son, I absolutely believe that he would hurt somebody else or has hut someone in the past."

Police says that "Even if you think the information is unimportant or has already been reported, please contact the toll-free CrimeStoppers hotline at 1-800-494-TIPS (8477) or text "TIP" to CRIME (27463). The Boston Police Department will stringently protect the identities of those wishing to remain anonymous and is more interested in the information you provide, not who you are."