October 1, 20:47, Robbery, Stockholm

A 15-year-old boy is supposed to sell a computer via an ad on Marketplace and meets a buyer in a stairwell on Fjärdholmsgränd in Vårberg. 
But when the people meet, the "buyer" is masked and robs the boy of the computer by threatening with an object resembling a pistol. 
The police become aware of the incident only afterwards and therefore it is unclear when in the evening the crime took place. 
The incident is classified as aggravated robbery.