"What if the prisoners…I mean, the people who were locked up here tried together and cracked the wall to escape when the fire broke out?"
"They were starved to death and even underwent continuous drug trials. Do you think they would do such an action that needs immense power and strength?"
"Are you saying that it is an arson? Or more precisely, an explosion to lead an escape plan? But who would dare to do it?"
"If it is an escape plan. Then, where did they even get the help to execute it on such a huge scale?"
"Do you know?"
"No. We know nothing…That night all we heard was a loud explosion sound and the cries of the people…nothing else. We really don't know about it."
"One second, captain. Are you forgetting the purpose of visiting this place? We came here to check if there any evidence that might help us to solve-"
"This?"
"Isn't it the same cigarette packet we found earlier?"
"Does that mean he used to come here, too?"