Seriously? Wow Peter's parents got killed when he was 10 in a fire (it was murder though someone set the fire intending to kill), talk about coincidences.
If they did go to them same school Peter would be the odd kid usually sitting alone drawing in his sketchbook. Hmm if we wanted them to meet we could always have them have lunch or gym together (not sure about other places but where I'm from those are always mixed between all four grades)