Exorcism

This story is kinda old it's from 2012, but i thought about it because people were saying in the "do you believe in God?" thread that there is no hell and that God isn't real.. The story is about a woman from Indiana whose home and kids become possessed by demons. The kids were speaking in different tongues and acting strange and there was demonic activity in the home. The kids were seen by doctors, psychologists, police, and a priest and all of them are witnesses to seeing the kids possssed. There's over 800 pages of official records from the Department of Child Services as evidence and the statements from the doctor who saw them as well as the nurse who saw one of the boys walk up a wall and medical staff who saw the boy lifted and thrown to the wall without anyone touching him. The chief of police from Gary Indiana also witnessed demonic activity in the home. I don't think doctors, nurses, psychiatrists, and police officers would lie about something like this. So how can people still not believe in God and hell when there's all this evidence? Here's a link to the original report written by the DCS case manager: 
 https://www.documentcloud.org/documents/1004899-intake-officers-report.html
The children are fine now after an exorcism was performed. 
Why do atheists ask for proof of the existence of God and the devil then when someone provides real proof they ignore it and continue with their stubbornness instead of researching these things themselves? I think they are just afraid that they are wrong.