Emerald Ridge takes out WIAA tournament's first No. 1 seed — Mount Si boys

Ellis Mosley lights it up with a team-high 19 points — and a halfcourt buzzer-beater at the end of the third quarter as the Jaguars hold on for a 67-62 state quarterfinal victory

TACOMA, Wash. — And down goes the first No. 1 seed in the Tacoma Dome.

Emerald Ridge, which had never won a WIAA Class 4A playoff game in the destination site, pulled off the tournament stunner Thursday night by defeating KingCo powerhouse Mount Si, 67-62, in the state quarterfinals.