A K-9 UNIT AIDED POLICE IN DETAINING THREE BURGLARY SUSPECTS AT A SCHOOL EARLY THURSDAY MORNING. AN INTRUDER ALARM WAS SET OFF AT EL ROBLE ELEMENTARY SCHOOL IN THE 900 BLOCK OF THIRD STREET. POLICE ARRIVED AROUND 2 A-M TO FIND THAT THREE CLASSROOMS HAD BEEN RANSACKED. 18-YEAR-OLD JUAN WEBSTER-ABINA OF GOLETA, A 16-YEAR-OLD BOY FROM GILROY AS WELL AS A 17-YEAR-OLD GILROY BOY WERE LOCATED IN A CLASSROOM AND ARRESTED.