Thank you. My short-term memory is not so good anymore. But that helped. ;-)
what was interesting to me was that walt still had the ruger revolver. if you remember the final season 4 episode when he comes back to the lab, kills the two guys guarding Jesse and the lab, he drops the revolver on the lab floor, then they go about dumping chemicals on the floor and starting the fire. You never see him pick it back up. But he must have because it’s the same revolver he pulls out of the soda machine a couple episodes ago.