This is an issue dependant on the brothers who recited Quran over him. They know better as they were close to him at that time. The possibility of Jinn being there is possible. They cure is to continue to recite the Quran and offer Ruqyah.

My husband is suspicious that someone had done black magic to his family. He went to 2 different people who read Quran over him. With the first one, when they read Quran he started screaming and shouting. He had to be held down by a few brothers.