Understanding particle-turbulence interactions near a wall is relevant to a variety of engineering applications, such as material transfer, energy conversion and propulsion. Despite numerous studies regarding particles in near-wall turbulence, detailed investigation on Lagrangian nature of particles near the wall is very rare. Our main purpose is to investigate Lagrangian statistics of inertial particles starting from the plane at specific wall-normal locations in turbulent channel flow for a wide range of Stokes number. To do so, we perform direct numerical simulation of turbulent channel flow and calculate large numbers of Lagrangian individual trajectories of inertial particles suspended in the flow assuming the particles to be point sources.