Brown, however, took over when the game was on the line, scoring seven of his team's next eight points.
The final two points of his phenomenal high school career proved to be the deciding ones in Saturday night's championship game.
Bossier had taken its first lead since early in the game on a three-pointer with just over two minutes to play. But after a Peabody timeout, Brown's baseline drive and slam dunk gave the Warhorses a 59-58 lead.
Two free throws by Peabody's Dee Wagner with 17.5 seconds provided the winning margin.
Brown earned MVP honors with 25 points, 5 rebounds, 4 blocked shots and 2 assists in the title game.
With the victory the future Cowboy becomes the first player in the storied history of Peabody Magnet High School - which has now won six state titles - to have earned two state championship rings. He played as a freshman on the Peabody team that won the 4A title in 2007.
Brown averaged nearly 32 points a game in leading Peabody to a perfect 41-0 record this season.