I know nothing about pistols and revolvers, which is why I usually kill off my characters with a blunt instrument or better with poisons. Besides, poisons are neat and clean and really exciting... I do not think I could look a really ghastly mangled body in the face. It is the means that I am interested in. I do not usually describe the end, which is often a corpse.
I'm sure you have a theme: the theme of your life. You can embellish it or desecrate it, but it's your theme, and as long as you follow it, you will experience harmony and peace of mind.
Too much mercy... often resulted in further crimes which were fatal to innocent victims who need not have been victims if justice had been put first and mercy second.
A mother's love for her child is like nothing else in the world. It knows no law, no pity, it dares all things and crushes down remorselessly all that stands in its path.