Hey! I think rj is Stilesi rewatched the first episode and I stopped when I saw Lisbon look at where the suspects where, Haffner, Mcallister and either Smith or Stiles where in transit at the time and I don't think they would leave there phone on a bus or anything, Kirkland was too far away, yes he could have left his phone but the next episode kind of rules him out, so that leaves Bertram, and Stiles or Smith , I'm not sure which one is S1 and S2 but I think smith is too short first of all and is overweight and Stiles is the only one it could be because in the second episode of season 6 we clearly see Bertram is on his phone when he arrives, so I think RJ is Stiles!