It has been more than four years since Melvin Seals was gunned down during a gang war in the Trinidad neighborhood of Northeast Washington.

His mother still cries every day, and each day is a struggle for her. In one of a series of newly released cold-case videos placed on YouTube by D.C. police this month, Deborah Seals-Craven asks for witnesses to come forward with information to help solve his murder.

"I don't think it's fair that people can take things from you that you can never get back," Seals-Craven says.

It was at 2 p.m., near Morse Street and Montello Avenue. Seals, who had recently completed a D.C. program that allowed him to get a job with the city's Department of Public Works, was standing in front of a community center when he was shot 17 times.

Before the shooting that night, the 30-year-old Seals had called his mother to let her know that he loved her. She says it is soothing to know that she got to talk to him one last time before his death and that he was thinking of her.

In the video, Seals-Craven implores anyone who has information about the shooting to not "let the murderers get away with it."

"If they're in jail, the need to be in jail for what they did to my child," she said. "If they're out on the street, why would you want to protect them?"

Anyone with information is asked to call Det. Eduardo Voysest (202) 391-4164 or the Command Information Center at 202-727-9099.

Police are offering reward of $50,000 for information that leads to a conviction in Seals' death.