Too convenient by half

Today's news that one of the five people arrested in connection with the random killing of 22 year old Donna Cleary has himself died in custody will doubtless be seen as bringing "some element of closure", that wretched cliche, to this case. But isn't it helpful for the other four that the consensus trigger man is dead and aren't there now nice handy answers to obvious questions -- Whose idea was it to come back to the house with a gun? Whose idea was it to fire at the house? The government's preferred method of kicking to touch when something like this happens is an open-ended tribunal. Is it too much hope that there'll be public pressure for something quicker and more decisive this time?