Lincoln and Olivia interview the agents, and are skeptical at Grant's explanation that he unloaded his entire clip just because he got spooked. "I don't know what to tell you. I overreacted."
Lee diplomatically says he's guessing that he doesn't want to risk telling them what happened because he's concerned about his reputation. "You don't need to be. Whatever you saw, however bizarre it is, we need to know what it was," he says. Grant hesitates, saying he doesn't know how he'll file a report for this case, and Olivia says they'll take care of that if he just tells them what he saw. "I didn't see anything, exactly. But I felt something," he says. "Like what, a ghost?" asks Lincoln. Grant's not touching that, though. "You said ghost, not me."
Meanwhile, Astrid's examining Jack's body. His neck is broken. Walter, listening to her report from the lab, says that could have happened post-mortem, but Astrid can't understand a word he says because he's busy stuffing his face with "Onion rings from Sully's." I was going to ask if "Sully's" is a real place in Boston, and then I realized that there are probably dozens of places in Boston called "Sully's."
Anyway, Walter suggests that Jack could have died from a rapid spike in adrenalin from fear, which would explain why he's white as a sheet. Astrid's all, "Are you saying that he was scared to death? Walter, that's just an old wives' tale." This was where I figured out the date this episode was originally supposed to run, before the baseball playoff game went long, to decide if this was supposed to be an extra-special Halloween episode. Anyway, Walter asks Astrid where her imagination is. "You must have been a very boring child," he says, pissing her off enough to make her turn off her headset. You know, Walter is still supposed to be part of the investigation.
While Lincoln examines the steps, by the broken glass (we can see blood on a shard) Olivia goes over to ask Astrid if Walter has any theories. Well, none that made any sense around Walter packing his gob with onion rings. She says he'll want to run some tests before he knows anything for sure.
Then Olivia decides to ask Astrid if the stuff they see at Fringe -- like this -- ever gets to her. Astrid's all, DUH, every day. "If I wasn't seeing the agency shrink, my head would have exploded a long time ago," she says, because it's not like she can talk to family and friends about it. She asks who Olivia talks to, and Olivia admits that she doesn't talk to anyone about it. "I'm starting to think that's weird. That's just not normal, is it?" Before Astrid can say anything -- hopefully something like "well, whatever works" -- Lincoln's back with a back of evidence that rules out ghosts: bloody broken glass.