Мафия 108. Haunted asylum

For me, another question is more interesting in terms of the overall behavior in the topic. Three people in this topic know exactly what the questions were, with 99.8% accuracy. Where is the third person who has the knowledge and the ability? I apologize for the strange question, but how is a flashlight attached to the hand/wrist, and most importantly, why, and what does it have to do with the sunlight shining through the holes in the roof?