(KHNL) - Investigators began digging through the rubble at the University Lab School to search for evidence.
At this point, they're not saying much, but they're not ruling anything out yet.
"It's very tragic," said Arlene Ting.
She graduated from UH Lab School exactly 40 years ago.
"They're really good memories, the classes were small, the teachers were great," said Ting.
She's just one of many who continue to visit the scene, which still hasn't been cleared by the fire department. Investigators don't know if the fire was deliberately set, or if it was just an accident. But they believe it started near the back of the theater.
Tuesday's fire completely destroyed the performance and physical education building. Damage is estimated at $6.5 million.
As investigators search for answers, school officials are trying to map out their future. But for now:
"We're taking some space which has been devoted to storage, arranging for temporary storage for the items in there and turning that into office space," said Jim Manke, Director of Communications.
He says many people have offered to help. So far, they've received $3,000 in donations.
"We've had groups call up wanting to know how they can help clean, that's not exactly practical. Others have tried to organize fundraisers for one kind or another," said Manke.