Just realised that the old thread title might be confusing now. The vigil is on Tuesday 31st May, 6pm, at Shandwick Place/Rutland Place where Zhi Min Soh's ghost bike is.
Here is SRD's post relating to the Facebook details in case you haven't seen them at the end of the discussion thread. Thanks.
FB event now up: http://fb.me/e/2xGAPmGVB
if you're on FB please 'invite' people who may be interested, sign up to attend if you can, etc