- Brenda Spencer, 17 years old, opened fire on a crowded elementary schoolyard with a semi-automatic rifle because "Mondays always get me down."
- Timothy Dwaine Brown, 16 years old, beat his brother to death before killing his grandparents in cold blood.
- Molested repeatedly by her father, 16-year-old Cheryl Pierson hired a classmate to execute him.
- Two Missouri brothers, ages four and six, attacked and brutally murdered a baby girl because "she was ugly."