Rollover caught on Dashcam

At 1:01 I zoom into the accident. The driver of the boxvan was following too close (I bet you he was on his phone) and rear-ended the SUV square in the butt when traffic began to slow down. Luckily, the driver of the blue SUV was OK with the exception of some road rash and cuts, and a nurse driving by came and helped and gave proper care until EMS arrived. The boxvan pulled over down the road. This took place in Riverside, CA