Rodrigo Mercado Rifarace, 19, of Springfield, contacted the police after seeing photos of himself circulating on social media.
The robbery happened in Annandale on the morning of April 4 near Patriot Drive and Heritage Drive. Rifarace and Ariel Alvarado Camacho, 20, of Alexandria, had arranged to meet the victim to buy a videogame he was trying to sell. Instead, they implied they had a weapon, took the game, and fled.
In other crime news, children on a school bus were subjected to an indecent exposure incident in Annandale at about 1:30 p.m. on April 10, according to the FCPD.
When the bus was stopped at a red light at Braddock Road and Roberts Road, the kids on the bus caused a commotion, pointing to a black four-door sedan in the adjacent lane. The driver then noticed the driver of the sedan was masturbating. He was described as a white man in his 30s wearing dark green cargo pants and a vest.