@Preston: Night 2 I realized you were the cop. In hindsight I should have figured it out during D2. However, for most of D2 I was absolutely convinced that Imran was our cop. Since he completely switched his opinion around during the night, I was convinced that he got a scum result on CoD. However, I did not want to force him to claim since I figured CoD should be a clear lynch anyway (which I still believe he should have been). It was only when he got into trouble and still refused to claim that I figured he was not the cop. However, that unfortunately lead me to conclude thate CoD and Imran were scum together.
Anyway, I think I would not have claimed in your position either. If you had been nightkilled, it would have been extremely obvious that you got a guilty result on EM, so no information would be lost. This way you at least had a chance to get in another investigation.
Still can't believe they lynched you though. EM claimed three investigations in two nights, that was pointed out, and still people followed him. After I read EM's explanation, I really wanted to quote it and post "OMG ... we took our dog ... uhm ... like to the fish shop today ... because the dog likes going out and meeting new people. (http://diablowned.com/ for those that don't get the reference.). However, I figured whoever was scum with EM might actually follow him on that defense and expose himself.