Metallicity ([Fe/H]) distribution of the 95 high-velocity star candidates compared with Sgr and Milky Way halo populations. The gray histogram shows our candidates. Sgr stream members (dark cyan shading) and Sgr dSph core members (purple shading) are from Hayes et al. (2020). Milky Way halo giant stars from Liu et al. (2018) are shown with a solid blue line, encompassing the inner (dashed green) and outer (dashed red) halo components.