Police searched the school for explosives and are planning a second search . Prosecutor : " The suspect is in custody, but we don't know if he has any accomplices. The teen hid explosives in a secret floorboard compartment in his bedroom , the DA says . The bombs were made with napalm , drain cleaner and flammable liquids , authorities say .
Police searched the school for explosives and are planning a second search . Prosecutor : Grant Acord made bombs and planned an attack deadlier than Columbine 's . The teen hid explosives in a secret floorboard compartment in his bedroom , the DA says . The bombs were made with napalm , drain cleaner and flammable liquids , authorities say .