In this article we show how to set up initial states in Script N = 4 SYM theory that correspond to high energy graviton collisions, which by the AdS/CFT duality, lead to black hole formation in AdS5 × S5. For this purpose, we study states in the gauge theory that are dual to graviton wavepackets localized at the center of AdS5, and carrying large angular momentum along the S5. These states are created by exciting only the s-wave mode of one of the complex adjoint scalars of SYM. For a single graviton, the state is 1/2 BPS and one can show that it is dual to a linearized 1/2 BPS geometry in the bulk. Exploiting this dictionary, we show how to localize the particle's wavefunciton so that the dual linearized metric has the form of a Aichelburg-Sexl shock wave. One can then put two such shock waves into a head-on collision, which is known to produce a trapped surface. Finally, we discuss the prospect of studying graviton scattering directly at strong coupling in the gauge theory using a reduced model of matrix quantum mechanics.