He had a decorated high school career, and if he's anything like older brother, he's a high character, high-achieving kid:

Prior to attending Riverside, Thomas was a four-year letterwinner at Taft High School in Los Angeles. As a senior he averaged better than 18 points, seven rebounds, and four assists per game. He was named the MVP of the West Valley League after leading his team to 26 wins and the league title with a perfect 10-0 record. He was also named first-team all-city.