== Quirrell's death == 

 The article says: 

 There Harry discovered that Voldemort's face was on the back of Quirrell's head and in the ensuing struggle, Quirrell died, not being able to withstand Harry's touch, which burned him. Dumbledore said of this that Voldemort left as little mercy to his followers as his enemies. 

 This seems to go along the lines of the movie.  In the book the burning manifested as reddened skin, blisters, and intense pain (not destruction as in the movie); this held Quirrell off long enough for Dumbledore to arrive.  The actual cause of Quirrell's death is given as Voldemort leaving his body.