Dragging this back up, but it has taken me a while to scrawl back through old threads.
IIRC the time C disappeared was the opening night of The Snug Bar in St John's Street. In SB there is a building with an old, carelessly secured door which a local WSer checked and told us this was connected to The Snug somehow.
We discussed it at the time, but could it be possible C was drawn to the noise etc of this opening night (I can't find what time it closed, but late/early am I'd expect).
Again going back to Thread #7 some maps were posted with the suggestion it may be possible to go from the Horseshoe to here in SB avoiding CCTV. Flat roofs seem to abound there, could C have crossed to St John's street that way?
All supposition I know, but worth considering as nothing is making sense after a year?
This is a link to Thread # 7 - posts about this area in SB and some interesting maps posted if anyone interested.
http://www.websleuths.com/forums/sh...-23-Bury-St-Edmunds-24-September-2016-7/page2.