Unsurprisingly, the people who chose unrighteous leaders continue to support those unrighteous leaders. Since Amulek has spoken against them, it is Amulek who is not only wrong, but is “a child of the devil.”
Verse 31 introduces the next important player in the game, Zeezrom. He is presented as “one of the most expert among [the lawyers].” It is probable that Mormon uses the name Zeezrom as a metonym. That is, it is a name that represents something about the quality of the man. Having done this, however, Mormon appears to realize that his readers won’t understand the metonym without further information. Therefore, he will interrupt his quotation of this event to add information that seems to serve multiple functions, one of which is to explain the name Zeezrom as well as other names that Mormon will use.