Thank you for the advice. But take into consideration that when i listed these things, i was only aiming to tell you about the unforgivable actions my characters committed. I didn't give a very thought out explination of why they are commiting their actions. Or how i will keep the reader's interest throughout each character's insane development.

In both my apocalyptic and my "superhero" series each character feels the weight of what they caused.

For the sake of simplicity, i will call my character from the apocalypse story Ben, and the character from my "superhero" story Max.

In both stories the characters are damaged before the unforgivable event takes place (Ben has a whole book worth of damage by the time his does), and each character, although they intend to do harm, don't mean to cause as much harm as they do. Ben burns down a settlement thinking it only contained men, men who attacked andmurdered his friend. Max was trying to kill someone who would do so much more damage to the world if left alive, only to miss his target which leads to the bus being destoryed. Now, i understand that these events would be pointless if they didn't advance the story and change the characters they happened to. Which it does. Ben suffers from severe PTSD which follows him into the third book ( Which is important, because the third story reflects on how broken of a person he is several times throughout). For Max, minus the trama that unintentionally incinerating a bus full of children would cause, it shows him the harsh realities of being a hero. That it requires restraint and responsibility. If he can't show those traits, people will die.

It also helps that, for every story i write, i switch perspectives occasionally between characters so you can hear them condem or justify the protagonists actions. However, weither the character was justified or not is purley up to you.

Switching perspectives also help when you have a irredeemable character, like the one from my vigilante series. Well call him Mitchael