It is PAINFULL to know the accident. while it is easy to criticize,
I only wonder whether the structure did not give any advance indications,-- these are better known to the concerned maintenance engineers. and perhaps a retrospective study may be already under way- these results will be useful to take care of similar old structures and for preventive measures.
i again feel sad for the type of accident and the loss to life (if any) and injuries to many travellers involved in the accident. I pray for their fast releif back to normal health.