Seth Kasteler Peninsula High School A senior at Peninsula High School, Seth Kasteler has been on the school’s basketball team for three years. “My first year was at Bellarmine Prep,” said Seth, who has lettered in basketball two years and was named first team all league both times. His success is in part due to his determination in overcoming a disappointing freshman year. “I missed the whole season,” said Seth of a lower back injury that caused a lot of pain and discomfort i