Yes, but that happens toward the end of the movie. Initially only Cynthia Murphy and Larry have seen the letter. Cynthia gives the letter back to Evan in the principal's office. Cynthia is so overwrought at the loss of her troubled son, possibly on the verge of a nervous breakdown, that she isn't going to analyze the format of the letter. She wants to believe that Connor wrote it to Evan. I disagree with Roeper's analysis.
