Five Beckley players had at least one of its nine 3-pointers, with two apiece going to Chase Hancock and Osborne in the decisive third quarter.
Beckley took the lead for good 43-40 on a Johnson 3-point play. A baseline basket from Light cut the lead back to one for the last time, as Osborne's back-to-back 3-pointers forced Riverside to call a timeout that couldn't stem the tide.
The lead was extended to 10 late in the third and the Flying Eagles cruised, finally scoring 11 of the game's final 13 points.
The Riverside loss marked the end of a tumultuous season that held a lot of promise under Coach Dusty Herscher, who offered the guidance of a stabling force not recently available at the Quincy school.
Riverside reached the State Tournament in 2002 under Jim Fout. However, the next decade held losing seasons and bouts with coaching instability.
This year, the Warriors finished with their best record since 2002 after a 4-1 start, the only loss being a hard-fought 48-42 decision to South Charleston at Quincy. Riverside followed with a 25-point rout of Capital, but, two games later, were humbled in the return matchup with the Black Eagles by a 80-48 score.
The downward spiral commenced, with no more winning streaks and two four-game losing skids.
Following the Ripley game on Feb. 4, the coaching staff - Herscher and assistants Matt Kelly and Pat Jones - were suspended after allegedly allowing an ineligible player to participate in the previous game against Parkersburg.
Riverside girls coach Scott Garretson guided the Warriors against Beckley (an 88-45 loss) and Greater Beckley Christian (a 59-45 win). Enter the head coach at St. Albans' McKinley Middle School, Metten, who coached Riverside to a 60-59 loss to Nitro in the Mountain State Athletic Conference playoffs, a 64-59 win over George Washington in the sectionals and an 80-50 loss to South Charleston in the sectional finals before Tuesday's defeat.
"Everything we've been through, they stuck together," Metten said. "Any other boys I know would not do that. Emotional rollercoaster with this team has been amazing, up and down, because of everything that's going on. I came back for them. A few of them are mad at me right now, and I understand that's how it is. I couldn't be more proud of those boys."
Contact Assistant Sports Editor Rich Stevens at richstev...@dailymail.com or 304-348-4837.