Something about this story is suspect. If the bus driver is a JW, she doesn't really know what her religion teaches, or more likely she's someone's Bible Study, as JWs don't believe in Hell, nor do they believe everyone goes to Heaven. A fanatical JW would have told the boy that he'd be destroyed in the Great Tribulation and wouldn't make it into the New World. But the way the news clip describes the encounter, I doubt the bus driver is a JW.
Also it's possible that the boy or the mother is embellishing their story.
While I don't approve of the JW religion or the way they treat persons whose lifestyle they don't approve of, reporters who fail to get their facts straight lose credibility, causing their story to be suspect.