“Missing Wrentham teen found; suffered effects of concussion, police say”
The Sun-Chronicle (Attleboro, Massachusetts)
http://thesunchronicle.com/articles/2011/09/23/news/10228824.txt
“All of what happened with his disappearance is related to his head injury,” said Wrentham Detective Lt. William McGrath. He said toxicology tests showed Glass did not have any drugs or alcohol in his system and that he was dehydrated and confused as a result of the head injury he received last fall while playing football.
…
“We still think this is the lingering effects of a bad concussion,” Diane Glass said during the press conference. Her son had passed out twice in school since getting the concussion.