One time I was at the park with my three kids and all the sudden every parent at the playground grabbed their kids, rushed to the parking lot, and got the hell

One time I was at the park with my three kids and all the sudden every parent at the playground grabbed their kids, rushed to the parking lot, and got the hell out of there. I had no idea what was going on. So we kept skateboarding. Next thing I know cop cars are zipping in and out of the neighborhood, dozens of police are running around jumping fences, and there's a helicopter circling overhead. Our car was parked in the center of the chaos, so we stayed on the far side of the park and watched. Would have loved to have an app like this that day. Still never got to the bottom of what was actually going on. Or figured out how all those other parents were privy to the situation before I was.