stalking Virginia police have arrested a man they said stalked a 10-year-old boy he tried unsuccessfully to adopt.

According to court documents obtained by The Virginia-Pilot, William Thomas Duncan Jr., 41, tried unsuccessfully to adopt two 10-year-old boys from different counties in the past 2 years.

Police say Duncan was so obsessed with one of the boys, that he gave him toys with GPS trackers hidden inside.

Duncan showed up at the boy’s school and at a field trip to the Carolina Zoo earlier this month.

He reportedly hired a private detective to find out which school the boy attended.

A magistrate ordered Duncan held without bond on a charge of interstate stalking.