As expected, no useful information from enroute channels, either ZLC or ZDV. Traffic begins on ZDV low feed about 0010Z 29AUG, but other than some (apparently international/language) confusion re: HAZMAT versus Dangerous Cargo, there's not much in the way of informative traffic, just the standard emergency information on fuel remaining (and it sounds like CFG83 dumped fuel over Wyoming), souls on board, cockpit security, and whether any assistance is needed immediately on landing.
Where useful information comes in is from the KDEN Public Safety channels. I'm still working on filtering data (definitely starting about 0040Z, working my way backwards now...) but it looks like there was some kind of scuffle on-board. A 35 year old female from the Czech Republic was attended to by medics. Unclear if this is the passenger causing the disturbance on not. Also worth nothing that Lufthansa requested United maintenance do an overweight landing check on the airframe (per FlightRadar24, registration D-ABUK).
I'll be trimming and distilling the KDEN Public Safety audio in a post later today. I don't see the point in posting what appears to be "routine emergency" traffic that isn't relevant to this specific event or otherwise notable, so no ATC comms at this point.
Continuing my Saturday Morning Quarterbacking thread, there's now a likely third and fourth reason for the divert to KDEN, versus the closer KBIL: c) CGF83 was massively over maximum landing weight and needed to perform a fuel dump, and d) even with dumping fuel, they were probably going to be close, if not overweight. United doesn't have any maintenance facilities at KBIL, much less Lufthansa or Condor -- it would have to be contracted out or flown in. KDEN, on the other hand, is a major hub for United, and has better facilities.