About 60 people were inside the building, which houses the work release center for community corrections.
Those people were evacuated safely with no injuries, and held outside the building. The fact that people were inside the building asleep in dormitories at the time the fire was set makes the arson even more serious, Loudermilk said.
Tips about the suspect can be submitted to the Terre Haute Police Department at 812-238-1661 or through Crime Stoppers at 812-238-STOP.
Firefighters entered the building to find the fire supression system had worked.
Bill Watson, executive director of community corrections, said the door entered by the suspect was not alarmed because it is a public access door used daily from 8 a.m. to 8 p.m., when it is locked by staff.
Video shows the staff locking and checking the door to make sure it was secure, Watson said.
Water and smoke damage occurred throughout the building, he said. Ceiling tiles were water-soaked and must be removed.
Teams from ServePro were cleaning up the dormitory area and control room of work release Wednesday morning. Watson said he expected to have residents moved back into two dormitories today.
About 54 to 56 residents and 4 staff were in the buildling when the fire alarm sounded, Watson said. All exited the building without injury.
“We had protocols in place and those were followed,” Watson said. “They shut down our systems so that damage was minimized, so we should be able to get the security system back online.”
The second floor of the building houses offices for the Title IV-D court, county probation, state parole and Choices Consulting Center, which offers drug and alcohol counseling services.
Community corrections, which includes work release and electronic monitoring, are housed on the first floor of the building.
Forensic teams from THPD were at the scene processing evidence, including collecting fingerprints and liquid believed to be accelerant.