Police say four people were caught using stolen credit cards on camera linked to a robbery in Northwest D.C. The robbery occurred June 9 around 10:55 p.m. on the 6700 block of Piney Branch Road Northwest. Six suspects approached the victim on the sidewalk and assaulted him. They stole his phone, credit cards, laptop and personal identification, and then ran off, heading northbound. Afterwards, four people were caught on camera at a store buying merchandise using the victim’s stolen credit card. Anyone with knowledge about the suspects or robbery is asked to call D.C. police.