Something about him, though maybe it was just the fact that he was all alone there, drew Rachel's attention and she circled back around for a closer look. That was how she managed to see him pick up a metal-framed chair that had been sitting close to him, and throw it out the window. The window itself exploded outward in a hail of glass shards, the largest, heaviest of which sliced through the tops of the – thankfully empty – cars that had been parked near the building.
(What in the...) Rachel wondered, before she clamped down on her curiosity and made the decision to act. (Hey! Guys! Come here! Back here! To the Kenny Building, fast!)
(Is it Arnold?) Marco asked; she ignored him.
(Oh, no!) Cassie exclaimed, having seen the falling glass, herself. (That guy is going to jump!)
(I believe he would be injured if he jumped out of such a high location,) Ax observed, as calm as he ever was. (Therefore, I doubt that he would-) the Andalite yelped in surprise as, as if in mockery of his earlier assertion, the man ran head-long at the window that he had just shattered.
(There's eight of us!) Rachel exclaimed. (We have to be able to do something! Come on!)
(It won't be enough to save him if he hits the ground,) Tobias said grimly. (But maybe we could make the river, at least.)
The eight Animorphs converged; wheeling around on a level glide, soaring up from lower altitudes, or diving down from a higher one. But all of them soon met up near the windows, all with the same goal in mind: to save the man whose life they had taken into their own, for the moment metaphorical, hands. The man himself pushed aside the remaining shards of glass that remained, stubbornly clinging to the frame of the window, and launched himself out, feet first and aimed for the hard ground far below.
Drawing on the flight-experience of each of their respective bird morphs, the eight Animorphs sped toward the falling man; almost every one of them hoping that their own strength would be able to get them there in time. Slade of course, was simply following the orders he had been given; Jake hadn't contradicted them, so that was as good as an endorsement in his mind.
The man, as he fell, came nearly face-to-face with both Rachel and Shara for the few moments in which he hung, poised between the force of gravity and the force of his own momentum. Gravity won out, of course, as it always did in situations like this, and the man began the long plunge to his death. Or, what would have been his death, if not for eight very determined birds.