Keep in mind... the daughter wasn't the first person to bring up Jack killing the unsubs.... Katie's dad was... and he was an adult, presumably a model citizen. Lindsay had been through hell, and witnessed her best friend going through even more.... I have no problem at all with her being shut down emotionally and wanting the guy dead. As for the glance between the 2, I totally took it as "I miss Katie.... is it ok to "be" her?"
The scene with Reid was good... until the rest of the team just left him there and he went back to jaw dropping shock.... I didn't buy that last bit, and, even as a Reid fan, it annoyed me. (ducks and runs lol )