I've done a lot of wrong stuffs that affect people I love the most.
At least you have a conscience and are willing to admit that you did bad things! This very thing by itself proves that you are not such a terrible person as you might think.
You know how many bad people there are?
Many of them are too selfish to give a damn about their hurtful deeds or words. Many of them don't just don't care about the damage they do to others - but they have the guts to think they are good and nice people.
And, there are cowards who do understand if they did something bad - but they try to have excuses for themselves or blame others for their own cowardly deeds.
This is how I define a bad person. But I would not demand that they get the capital punishment.
Did you really do something so bad that it would make you eligible for getting a death sentence?