I've tried to live much of my life by this axiom: "when in doubt, don't". Regardless of its legality, I would never fly my drone over/near that many people. If something were to go amiss in the operation of your drone (and if you read this forum enough, you know it can) and your drone were to hurt someone, you would at the least get financially "whacked" and could end up with jail time. Not worth the risk.