The supporting characters in the beginning of my book are not required to progress the storyline past the first initial chapters. However, for those initial chapters I have essentially presented round, generally likable individuals, who each have unique personalities and interact well with the MC. Then, I have a chapter that's dedicated almost entirely to killing them off one by one in rather inglorious ways. My intent was to attain the 'shock factor' of having these developed characters dying at an unpredictable point in the book. However, in so doing, I'm afraid this will actually backfire and turn off the reader who may have been interested in one or more of the characters that have been killed off so early on. Wether they die or not, they will not be involved in the storyline after a certain (violent) point. Perhaps killing them isn't the way to go. But, at the risk of sounding like a sadist, having them die does add excitement. I'm open to any opinions, advice, or tips you may have on the matter. Thanks!