ST. PAUL, Minn. - A suspect has been charged in the strong-armed robbery of a woman after police say he contacted her on social media to buy a watch.

And get this... the alleged perpetrator is only 13-years-old.

A police report says the boy arranged to meet the 35-year-old victim in the parking lot of the Rice Street Library after contacting her on Facebook Marketplace. The victim did not know the boy was 13-years-old. When she arrived around 5:30 p.m. Tuesday, the suspect knocked her over, grabbed her watch and ran off.

What he didn't think of was that the victim had his Facebook account with the teen's name and a number of pictures of him. Police went to a known home on the 100 block of Maryland Avenue west, where the boy was found hiding.

He was taken into custody and booked into a juvenile facility on charges of felony aggravated robbery.

The St. Paul Pioneer Press says the 13-year-old is also suspected of robbing another woman in the same parking lot on Sunday, after arranging to meet her there to buy an iPhone.