While frightening from an outside perspective, Boo Radley is shy, introverted, and generally reclusive. He is partially motivated by the rough situation that he has been placed in since childhood. He wants to be free, see the world around him, and interact with other people. Although he is portrayed as a monster of sorts for a large portion of the novel, Boo is kind and very curious. This is displayed by the protection, care, and worry he displays for Scout and Jem. Sadly, his compassion is not fully realized until later on in the novel. Boo is also largely motivated due to his embodiment of selflessness, which pertains to putting others' needs and wishes above your own. However, he can be violent at times, giving him the aura of a vigilante. The death of Bob Ewell is one example, but this was done in an act to protect the children.