The Associated Press cited an unnamed official as saying that Maj Hasan had received a poor performance evaluation from the Walter Reed Army Medical Center before transferring to Fort Hood in July.
Dr Thomas Grieger, who was training director at the centre while Maj Hasan was an intern there, said told AP that he had had "difficulties" that required counselling and extra supervision
http://news.bbc.co.uk/1/hi/world/americas/8345944.stm
