The police in the video said alcohol wasn’t involved in this tragedy. Looks like it was just youth and inexperience.
When tubing, are there two required to be in the boat as in water skiing? So that there is a driver and a spotter on the boat.
A real tragedy for everyone involved, not just the families of the girls who were killed and injured (obviously), but also for the two girls in the boat. They'll have to live with this for the rest of their lives.