This is what happens when public schools contract out their bus service. They lose all control over who is driving the kids, complaints, disciplinary records, etc. It's the reality of public schools now, that few to none maintain their own bus fleets anymore.
I know it's not "PC" to say this, but I will anyway, because I know some are thinking it. This guy's personal appearance (messy dredlocks) and age (24, still in the actuarial insurance high risk driving category) do not transmit "I am very respectful, responsible, safe, and trustworthy." Instead, it screams "the contracted bus company will hire anyone that applies and has a CDL, for the lowest possible pay." IMO, this guy should never have been hired due to his age and personal appearance alone. My opinion. Others will vary.
They have the recording devices from the bus. My guess is the real truth is even worse than what they have disclosed. There was no hesitation to arrest and begin charging him. The speed must have been extremely high to result in a school bus being torn in half in a residential neighborhood.