I was sure I had seen the video earlier:
A longer discussion of the accident here:
https://www.bikeforums.net/advocacy-...t-s-death.html
It was a very unfortunate chain of events that led the cyclist to end up under the truck and to get killed.
While the truck undoubtedly passed the cyclist going over the bridge, the traffic lights allowed Anita Kurmann to catch the truck and shadow the truck, a very dangerous place to ride.
Then as the truck swung left, the turn should have been apparent, but it somehow didn't register with Anita for one reason or another.
I do think there are some things that can be done to get better signal lights on trucks, although many do have quite a few flashers. Beeps? It still has to register with those around them. And, too many beeps become ignored.
Other road users must realize the extent in which the trailer wheels don't follow the cab wheels, and how one must find a path to quickly escape the trailer's path. Right turn with the truck? Stop way short if one sees a truck turning.
It does appear as if there has been some effort by the city to make that intersection safer.
https://www.google.com/maps/@42.3507...7i13312!8i6656