Third Person's POV
Niklaus Mikaelson wasn't always a monster. He wasn't always the coldhearted killer everyone thought him to be. In fact you'd be surprised at how kindhearted he was in the past. No one except for his siblings Elijah and Rebekah knew about his past. But not even they knew why Klaus became the person he was.

Throughout history people thought it was the fear of being alone that drove him to become the viscious killer that he was. Others thought that his family was the cause of his coldhearted way of life. But no one really knew the truth behind Klaus' bitter life. And no one was foolish enough to pry.

Klaus Mikaelson had a very violent reputation in the French Quarter of New Orleans. And boy did he uphold that reputation. Everything that he did, every move he made was either for himself or to make people more afraid of him than they already were. Klaus liked being in control. Loved and craved it actually. And he did anything he could to get more power or control. He killed to get what he wanted and no one dared step in to stop him, except Elijah and he ended up getting a dagger in the heart and stuffed in a coffin for weeks.

Everyone thought he was heartless and he began to believe it. Until he saw Chris Stewart. That day changed him just a little, whether for better or worse no one would find out until later on. 

And by then it might be too late.