Too Horrible to Be a Saint?

I am always grateful when someone poses a question that generates a podcast. I may not have the exact question right but as I understood it--are there some things done in the life of a saint murder for instance, that are so beyond the pale that it seems incongruous the person should be considered a Saint, someone we look to as a figure of holiness? I may not have found the best answer. But it is worth the tussle!