The kid was fast. Reese grunted with surprise and frustration when he ducked out of range of his swiping hand, and made a noise louder than that when he squeezed between him and the wall. "No you don't, you little shit!" But yes he did. By the time Reese got himself turned around, Riley was already tearing out of the smaller room and further into the plane.
A soft growl escaped him while he violently sheathed his knife, already taking the leaping first step into his run. The aisle was wider in First Class, which made it easier for the giant bounty hunter to pick up speed after his fleeing target. He assessed the situation while he ran, looking for something - anything - he could grab and throw at the kid to try and throw him down.
Not all of the belongings had been taken off the plane. As they rampaged through the rest of First Class and made their way into the main part of the plane, Reese spied an unopened can of pop in the aisle ahead. He slowed his speed just enough to swoop low and grab it, then used his grip on the nearby seat to leverage himself back up into his mad dash after Riley. But now he had a weapon he could use.
Reese was a pretty good shot, and in the aisle his aim was streamlined: there wasn't much other than Riley for him to hit when he whipped the unopened can at his back, aiming for the back of his head.