I just wanted to post this update. The old thread is on pg 5 and 17 pages long so I didn't want this info lost.
The NTSB has released their 1st report on the incident. The final report will take up to a year.
According to the report, they are blaming the crash on a switch failure. So the theory about monorail pink backing into monorail purple was correct. The report doesn't indicate that there was any mechanical problem with the switch.
The report also indicated that driver Austin Wuennenberg did stop his train and attempt to put it in reverse to avoid the collision.
Also, according to local news reports (WESH) 2 employee, the on-duty manager (who was at an LBV restaurant at the time of the crash) and the maintenance person in charge of making the track switch have been suspended without pay.
Such a horrible tragedy that should have been avoided.