Authorities say they have arrested a teenager for starting a fire at the Centerville High School.
The fire happened last week and damaged all three floors.
Investigators initially said a spark from an outlet caused a couch in the teacher’s lounge to go up in flames.
But now after further investigation they have uncovered additional information.
Police arrested the 14-year-old boy Friday. He faces first degree arson and first degree criminal mischief charges. He is being held in a juvenile detention facility.