[Gat nods, recalling the rest of Lucas' conversation from that time.]

An' that was th' first proof ya'll had that folks can selectively die for good in this town, I reckon, since he ain't been back, an' neither has Samantha.

[From his body language, Gat looks especially contemplative. He's pondering possible meanings behind the two killings, and the revival machine in the Dairy ...]