I was reading on another site that the fat guy that Rick killed in the bathroom was in the group that found Darryl. I would have to go back and confirm this, because if so there is a severe timeline difference and Darryl would have been at the house that Rick escaped from.
I don't recall seeing the guy who had been killed by Rick with the "marauder" group when they found Daryl, but I'm not 100% sure. The only two guys I recognized for sure were the older leader and bandana guy. I'm hoping they don't jumble up the timeline by having Daryl meeting the "marauders" before Rick's stay in that house. The show is already hard enough to keep track of with the main cast split into small groups.