User blog comment:VDRAGON/Who's Blackmailing Cam?/@comment-6502769-20130623001015

I think it is either Irwin or Grayson. Irwin because he hates Lee, and Cam is Lee's best friend so he probably hates Cam aswell. Also Beth is in the mathletes with Irwin and she also hates Cam because he beat her in running for president so probably conviced Irwin to hate Cam even more. Irwin was mega angry when school was closed for the day in Misadventures in Babysitting and probably called Beth the put the note in Cam's pocket and go on stage and ralley against him so that school would be back on. Irwin was also one of the people in the grade 3 class. Grayson because like you said, there would have had to be a camera behind him and no one else was in the cubeicle, so Grayson would have had to taken the picture. Also you never see Grayson get the note telling him to eat the beetle and he didn't necessarily have to pour soup on his lap just pretend he did. Also Grayson said that he could trace 'the e-mail' to find the blackmailer, but what e-mail? All the letters that had been sent were hand writen.