User blog comment:AltertheSilverBird/Total Drama: Danganronpa Chapter 14: Class Trial Part 2/@comment-30895873-20171027142135

Duncan - "You trai-"

This is totally suspicious, so I might say Harold was the suspect. What's weird on him is that he also pointed out the book. But on the other hand...

Dawn - "Also the way the bombs were describe in the book matches the ones we disarmed. Harold and Cody who were good at machines can confirm that."

There's also kind of an evidence for me? Cody was also good at machines, however does not show any proof that he clearly worked for Duncan.

I'll go with Harold, Cody could be another one but does not show any proof about working with Duncan.