I don't think a third strike is confirmed, but I also think "double-tap" is more of a category meaning "followup strikes to hit responders" so I wouldn't be surprised if 2 followup strikes instead of 1 are still categorized as a "double-tap strike". It seems like splitting hairs either way. We know that the strike caused surviving teachers/students to congregate in a prayer hall. 40 minutes later that was hit as well killing almost everyone