Cut to Calleigh explaining, "We isolated bleeders on specific parts of the sleeper, but on the feet, it was an extreme amount of everyone's blood." We flash back to Erin crying as she wanders around. Speedle continues, "So the toddler was here, veered away from the mother, around the father, sharp right to the brother and the infant. But here, the blood from [Luke] pooled around the toddler's foot." Horatio picks it up: "So that means the toddler was over Luke when he bled out." Alexx tells us that at least it was quick. Horatio says, "So she was inside within minutes of the killing, but she's the only family member not shot. Why? Why was she spared?" Delko says, "She's the only girl." Speedle counters, "Maybe she was hiding." Horatio, who's really a glass-half-full kind of guy, says, "Maybe she was lucky."
Horatio and Calleigh are out in the garage now. Calleigh tells him that Stephanie normally drives a wagon, but it's been "a while." We establish that the garage door has been closed. "So Dad goes to work, like normal. Eleven forty-five, he gets a call from Mom, and then he leaves, upset. Right? So Dad leaves his keys in the ignition, but remembers to close the garage door." The two then turn their attention to the gun safe; there's ammonia around the door.
Whatever that means, it's enough to have Horatio and Sevilla checking out chinless Stephanie again. Horatio invites Sevilla to take a look at the position of the body again, noting, "She's the only victim we found at rest." Delko notes, "Females usually don't suicide by shotgun. Too messy." "Well, did you see the rest of the house?" Calleigh snipes. She then adds, "I think there was a bigger concern than this." Horatio asks, "Speed, how long do you think you're going to be here?" "All night," Speedle replies. "Keep me posted," Horatio says. Speedle promises to, while mentally resolving to charge $200 worth of takeout to Horatio's American Express. After Alexx carries out Max's body bag, Speedle stands there, only gradually noticing that bits of brain matter and blood are dripping down on him from the ceiling.
Back at HQ, Alexx's morgue is full up with Caplins. Horatio is standing there too, brooding in Alexx's general direction before bidding her to begin. She rattles off the particulars for everyone: "Luke, sixteen years old. Shot twice -- once in the shoulder, once at the base of the skull." Horatio muses, "Two wounds. Maybe he was on the move." Alexx replies, "Running only gave the buckshot pattern room to expand...newborn, a few pellets is all it took." It's quiet for a moment, and then Alexx continues, "People really don't chew, especially hungry teens." She fishes out a half-eaten fry from the jar containing Luke's stomach contents, and Horatio says, "The infamous half-eaten bag of fries. So -- Luke brings home lunch, but doesn't get to eat because the killing has started." We also find out that Luke's interrupted lunch is but the latest in a series of aggravations that have given the kid the nervous habits of nail-biting and teeth-grinding, as well as an ulcer. From this, we're to infer that he's a stress case, and was very probably responsible for much of the day-to-day care in the house. Horatio takes this in, then asks about Stephanie's reach, presumably to see if it was possible for her to have positioned the rifle in such a way as to blow off her jaw. She's got a twenty-seven-inch reach and the rifle has a 24.5 inch barrel, so it's entirely possible that she shot herself. She's got no GSR, but Alexx says that's not unusual with a long rifle barrel. Horatio asks about GSR on Jason and Luke, but Alexx says they both have too much blood on them to tell. As the camera swoops in on the bloody pulp where Stephanie's lower lip and chin used to be, Horatio asks Alexx to tell him about Stephanie's fatal wound. Alexx does: "One shot, close contact, pellets were a compact mass. Pushed by pressurized gas cloud into the brain, turning the medulla into pulp." Maybe I'm just being touchy, but it seems like the gore factor on this show increases from week to week. Both Stephanie and Timothy died instantly. The autopsy session ends when Horatio gets a call telling us that Jason Caplin just got out of surgery.