“Say his name! Robert Jones!” shouted the group, which included members of the building trades union Local 57. Jones had worked at Southwark Metal Manufacturing for more than 20 years, his family said, and was a valued member of the union.

The family of Robert Jones, who was shot and killed by an off-duty Philadelphia detective in October, is demanding answers from police and the DA's office.

Robert Jones, 54, was shot and killed by off-duty Homicide Det. Chris Sweeney on Oct. 3. An investigation into the shooting remains ongoing, police said.