This "episode" will probably emotionally scar the two brothers for life - they may lose all trust in dogs (or even certain breeds). A very sad day for dogs.
People tell me that it's "cruel" to crate a dog but I would like you to think about this ... Was it worth it? Was it worth not crating the dog for something like this to happen??
What's more cruel? To crate a dog or to allow it to fail so badly that it is euthanized and children are harmed??