1) A lot of people forget that this is a news and rumours sub-forum.
2) A lot of people remind others that this is a news and rumours sub-forum.
3) All incidents and accidents occur due to a chain of events.
4) Eye witness accounts are unreliable. Read up on the JFK assassination for example.
The probable cause of this major accident is a fatigued flight crew, who had received awful training on said type, flew into bad met. conditions and got either disoriented or did not follow standard procedure when it came to executing an instrument-related approach (i.e. CFIT).