The victory gave Los Canaleros (1-1-0, 4 pts.) the Group A title as idle Jamaica (0-2-0, 2 pts.) also qualified for the knockout round. Barbados (0-1-1, one) was eliminated from the competition.
In the first game of the doubleheader at the Estadio Agustin "Muquita" Sanchez, Canada tied Costa Rica, 1-1, in a Group B encounter; a result that enabled the North Americans to reach the quarterfinals as well.
Zorrilla sent the host team into the a 24th lead, turning on his defender in the penalty area, cutting back onto his left foot and finishing past goalkeeper Keon Harding at the near post from eight-yards out.
The Panamanian struck again in the 79th minute on a great solo effort to give the host some breathing room. Zorrilla beat his man on the left side before firing the ball into the roof of the net at the near post for a 2-0 advantage.
The Canaleros held on the rest of the way to move closer to qualifying for the FIFA U-17 World Cup. Goalkeeper Jaime de Gracia recorded the shutout.
The quarterfinals will be held on Saturday and Sunday, with the four winners qualifying for the 2013 FIFA U-17 World Cup, which will be played in the United Arab Emirates from Oct. 17-Nov. 8.