I didn't hear Halling's name mentioned (not saying it wasn't, just that I didn't hear it). It doesn't really matter, because Teyla is looking for a whole bunch of people we don't know, including the great love of her life whom we've never even met (I'm not counting the dream or minion versions of Kanaan, because they're not the Kanaan Teyla fell in love with, if that makes sense). I'd like to feel something for these people, since their loss is such a major blow to Teyla, but they're really more of an abstract concept than people because we just don't know them.