The Facebook-related incident led to the evacuation Tuesday of two schools in the Round Rock Independent School District. No devices were found and classes resumed Wednesday.
Sheriff's Sgt. John Foster said Thursday that the suspect, who could face charges, was never in Texas and Deerpark apparently was randomly targeted. Foster says the suspect posed as a Deerpark student and also allegedly called several students.
The FBI is also investigating. The name of the juvenile and further details on his overseas location were not released.
Making a false alarm or report is a state jail felony.