Lee and Olivia head upstairs to the kid's bedroom, where a doctor walks them through the scene: "We found a couple of partial prints on the windowsill and in the closet, but we're still collecting evidence. We believe the suspect snatched the kid, and he fled out the window."
Based on the fact it's a long way down, especially if you're carrying a 50-pound kid, Olivia -- who notices a Burlap Bear book, which she once upon a time read to Ella -- theorizes that the guy is likely male, strong, twenty to thirty-five years old.
Meanwhile, Lee is bothering the forensics tech to let him see the fingerprints because apparently he's noticed "some kind of residue" on them. Aren't fingerprints all residue? Anyway, he runs the residue through his handy little scanner thing and determines it's sucrose. Then the detective jokingly asks if the guy was "eating cookies or something." Lee, not laughing, says, "Uh-uh. He secretes it through his sweat. It's the Candyman. He's back." I like to picture that this scene took ages to film until the actors could stop cracking up over referring to the kidnapper as "the Candyman."
Alt-Broyles is in his office appearing to review the Candyman's (snicker) young victims when Walternate comes in to gravely remind Broyles that they both know there's no crime more heinous than the theft of a child. Look, I grew up watching Beavis & Butthead and Bill & Ted, so I can't hear "heinous" without giggling. Even when I'm watching Law & Order: Special Victims Unit, although it seems clear that SVU is actually a comedy now. Broyles says that he'll do everything he can to find Max, and Walternate says he doesn't doubt Broyles' resolve: "Actually, that's why I'm here. There's no shame in letting it fall to another desk if it's too personal," he says, and it takes Broyles a moment before he says it's been four years since the Candyman took his son: "Four years, since I heard him laugh or watched him play outside with his sister. He had my son for two days. When I got him back, he wasn't a little boy anymore. If there's anyone you want on this case, it's me." Walternate accepts that, which is big of him, because it's pretty hard for him to suggest this might be too personal for someone else, given that Fringe is investigating under the Peter Bishop Act and all.