It looks that way. There were two robberies in the area this afternoon in the 4 to 4:30 pm time frame and it appears that the same suspect committed both of them, one in the 1500 block of O Street NW and the other at 14th and T NW. The suspect description is below.
From DC Police Alert:
Robbery in the 1500blk of O St. NW. Robbery at 14th and T St. NW.LOF A B/M, 21 Y/O, GRAY TEE SHIRT, DRK JEANS, THIN BUILD, 140 LBS, L/S RUNNING E/B ON T ST DO NOT TAKE ACTION CALL 911 W/EVENT #I20100283702