The way in which this thread has drifted and the untimely and poorly thought out arguments posted reminds me of why I now rarely use this forum. There seems to be a number of posters here who object to any risk however miniscule of tragedy befalling anyone unconnected with the activity that led to the event. All I want to say to them is stay as far away from other people as you can because humans engage in all sorts of activities that could possibly be hazardous to your health like breathing in a crowded tube train when carrying a virus, like driving on the same road as you, like flying in a big passenger jet that might crash on you. The list is endless and the hazards obvious however great care is usually taken to avoid harming you and I am sure the recent tragedy was no exception but if there are any lessons to improve your safety I am sure they will be applied.
If you have missed it, I suggest you read post #189.