Complex sentence: A native of Brooklyn, New York, Boynton led his high school basketball team at Bishop Loughlin Memorial High School to the city semifinals and earned first team All-New York City honors by averaging 15.0 points, 4.0 rebounds and 11.0 assists per game.
Split into simpler sentences: A native of Brooklyn, New York, Boynton led his high school basketball team to the city semifinals. Also while at Bishop Loughlin High School, he earned first team All-New York City honors by averaging 15.0 points, 4.0 rebounds and 11.0 assists per game.