Olivia's tending to the guy nearest the bus as Charlie comes over to say there was a commotion: "Dog ran into the street, distracted a bus driver. There is no way this is another coincidence." Olivia points out that this time it didn't work, because the guy under the bus is going to make it.
Then she notices an injured woman staggering to her feet ... and then a ballpoint pen rolling down the street. "It's not over," she says, half to herself. She looks around and spots Dr. Chaos, managing to stand by himself even in a crowd of onlookers on an overpass above the road. And then somewhere down the street, some poor sap puts his headphones in and starts strolling across the street and gets smacked by the ambulance racing towards the carnage. Well, if you're going to be hit by a car, I suppose an ambulance is the best possible option.
Olivia has deduced that the weird guy is the one causing this, so she goes sprinting up the nearby steps to the overpass, while he calmly grabs some poor guy's bike and throws it off the overpass, sending it crashing to the street below. The blank expression on his face doesn't change as Olivia pulls her gun on him. He's even casually put his hands back in his pockets after throwing the bike. He gets a half-smirk and Olivia tells him to put his hands on his head. He complies, but then, moments later, after a delivery van swerves to the other side of the road to avoid the bike on the street, he vaults over the side of the overpass, landing on the roof, where he turns around and smiles at Olivia. He even leans back all casually as the van very slowly drives away. I mean, is it not an option for Olivia to yell for one of the MANY LAW ENFORCEMENT OFFICERS DOWN ON THE STREET to stop the van?
Over at the Defense Department hospital, Lee is rushing to get back into his magical healing chamber, telling Olivia to give Bad-Astrid the physical description of buddy and to run it through the database, and Bad-Astrid is already working on that. Olivia's all hung up on how the guy knew the bike would slow the truck down and swerve under the footbridge: "I mean, he didn't even look. How did he know precisely when to jump?" Lee tells her to quit worrying about how and to start worrying about why. "The victims must have something in common. There's got to be a connection we're not seeing," he says. Meanwhile, his face is starting to pulsate with all kinds of grossness (but be honest: how many of you were thinking that you wouldn't mind popping that?), so they strap him into his hyper-nanite-baric or whatever, and he's still telling Olivia to cross-check their medical files, criminal records, etc. Olivia's all, "Shut up, OK, I got it," and Lee tells her, "Someone's gotten bossy."