The unnamed protagonist is the main character and villain of the song, "Such Horrible Things", by the band, Creature Feature.
Throughout the song, the character describes all the horrible stuff he has done in his life and admitting that although he deserves the most gruesome of deaths, he is proud of all his crimes. Also, he tries to admit he's not a bad man despite his heinous acts, but changes his mind at the last second and fully admits that he really is as bad as people say. He is currently 18, and in solitary confinement as he is narrating all the crimes he's committed in his life. From the day he was born, he scorned his parents' name, and over the years would eventually drive them both insane and ruin their lives. He experienced his first act of hostility by biting the nurse that delivered him. He refers to his birth as a curse, though whether or not he meant this literally can be up to speculation.
Age 2-Poured super glue in his father's hair, forcing him to cut it all off.
Age 4-Waited by his door, and as the mailman put mail through the slot, stabbed his hand with a knife.
Age 6-Tricked his neighbor's son into playing hide and seek with him in the woods with the intent of getting him "forever lost". And he apparently succeeds in doing so. It can be assumed that the child never found his way out of the woods and died of starvation.
Age 8-Burnt his house to the ground simply because he hated its color.
Age 10-Pretended to drown so he could scare the people who came to rescue him and laugh in their faces.
Age 12-Pushed his sister down a well, most likely killing her, just to boost his self-esteem.
Age 14-The character doesn't seem to remember doing much, but after thinking it over, he remembers "...that one time". During 50 seconds without narration, you can hear screams and car noises in the background, implying that he may have started a car accident.
Age 16-Shoved his brother down a hole and buried him alive, nearly killing him, because he found him to be dull. It was for this crime that he was finally caught and put in an asylum.