I just checked out post #3 as suggested. It started out with adjust vertical speed 3 times followed by descend 3 times. Does that mean they didn't respond to the first RA so that caused the descend RA? Would this be in the news if they had adjusted vertical speed? Once again the fastest way to do this is manually lower the nose and reduce power. Using automation if they were on autopilot and didn't disconnect would take a bit longer. We all know not responding to an RA initially will escalate to more aggresive RA commands.