If John was so paranoid . . . . .
. . . . then how likely is it he would have gone to the public washroom looking for sex wearing his school uniform? He was a high profile student at a prestigious private school in a smaller city--it seems to me given how paranoid he was he would more likely have gone wearing street clothes and sunglasses.
Just a minor, minor point.
________________________________________________________
"I'm running this monkey farm now, Frankenstein!!!"