How is Steve Harmon in Monster affected by his mistake?

Steve Harmon's involvement in the robbery, which results in the murder of Alguinaldo Nesbitt, dramatically impacts his perception of himself, his peace of mind, and his relationship with his father. Steve Harmon is a relatively well-behaved teenager who makes the terrible decision to participate in a store robbery along with two other young men. While Steve's involvement is ambiguous, he struggles with his conscience and continually questions his identity. After the prosecuting attorney refers to him as a "monster," Steve begins to think that maybe he really is a monster. His conflicted feelings about his positive and negative character traits, as well as his ambiguous involvement in the serious crime, leave him perplexed and confused. Steve also fears for his life while he sits in prison and attends his trial. Steve does not want to spend the remainder of his life behind bars and has a difficult time processing the reality of his situation. In addition to Steve's struggles concerning his own identity and efforts to remain safe in prison, his relationship with his father is tarnished following the crime. Steve's father cannot comprehend who his son really is and eventually moves away after Steve is found not guilty. As a result of Steve's mistake, he questions his identity, fears being in prison for the rest of his life, and loses his relationship with his father.