I’m not really buying the Toyota U-turn narrative because if that were the case, it would seem the Toyota, while making a U-turn, would simply not have enough speed/force to push that SUV backwards, back to where it started it’s left turn to westbound Sunset.
Latest info I found, today, 8:47 AM PST 01/22/2022:
“Police told reporters a red Prius was making a U-turn as it continued through a ‘red arrow’ signal to turn left when the collision occurred, causing the SUV to roll on top of the Prius and hit two other vehicles.”