WINDHAM – Investigators have conducted two searches of properties owned by Windham resident Donato Corsetti relating to the arson at an apartment building Corsetti owned on Route 202 in Windham Center.

According to Sgt. Joel Davis of the state Fire Marshal’s Office, the searches were performed two weeks ago at Corsetti’s home and his office inside the store, both of which are located adjacent to the three-unit apartment building.

Besides the search warrants, Davis said, investigators are continuing to conduct interviews pertaining to the Dec. 7 arson that destroyed the three-unit apartment building at 447 Gray Road. Three people, including a baby, were at home in the rear unit at the time, but all managed to escape safely. The fire gutted the middle apartment and damaged the front unit.

“There’s nothing new since we did those two search warrants a couple of weeks ago now on Donato Corsetti’s house and office,” Davis said Wednesday morning. “We had some unanswered questions and we thought maybe the warrants would help us answer the questions that we had, and I think we gained some more insight into what we were looking for.”

Corsetti was rescued by a store employee inside the apartment shortly before first responders arrived.

Davis said he wouldn’t go into the details of the case since it’s still under investigation and public information could compromise witness testimony. He hasn’t ruled out anyone in the arson.

“Guys are following up on leads, interviewing people. When a fire investigation turns into a criminal investigation, the investigators have to do a lot of research, a lot of in-depth digging into paperwork, interviewing people trying to put cases together,” Davis said.

Authorities have released little information as to how the arson was sparked or whether multiple people were involved. Davis has said in past interviews that Corsetti was found bound by an undisclosed type of material when a Corsetti’s Store employee saw him flailing about inside the building when the fire was already in progress. The material, initially publicized as duct tape and later as electrical wire, has yet to be released, and the nature of how Corsetti became entangled and received two bruises to the forehead has also not been made public.

Davis also didn’t give any indication when investigators will wrap up their probe.

“There has been information we have gained through interviews and warrants that is helping us and we’re not going to release any of the particulars of the investigation yet,” Davis said.