Minor points - "Again, if the lane was clear when he put his signal on, the fact that he signaled a turn should have warned anyone from trying to sneak by on the inside." I couldn't see the cyclist prior to 12 seconds before the crash. At that point, the cyclist was beside the trailer, not behind.

And "Well, if the lane was clear ..." In Oregon, bicycles are considered vehicles. I think that is true of Massachusetts but it has been a long time since I lived there. I believe the lane the cyclist was in was a designated bike lane. A lane set aside for a type of vehicle is a traffic lane, is it not? By law, at least in Oregon, you have to yield to traffic in the lane beside you before you cross it to make a turn. (It is worded specifically for bicycles also, making for redundancy but I won't argue that point.)

They, the cyclist and the trailer, were overlapped a full truck and trailer length BEFORE the truck entered the intersection. Are there any states where you can legally initiate a turn, cross another lane on your right and wipe out a vehicle that has been there the whole time?

I know full well how difficult it is for that truck driver to pull off the turn he did on those streets. I wouldn't want his job. But that doesn't make him legally "right". This should have the truck manufactures, companies and unions searching for better answers.

Yes, the cyclist needed to be more aware. My best friend's dad told us that scenario was quick death when we were 13. I saw that truck in front of me 11 years ago. (Smaller single dump truck but it would have done the job just fine.) I lived only because I had an angel sitting in the passenger seat.

Ben