This article introduces the concept of "racial witnessing" -- i.e. defining moments where an individual experiences a strong event in which they (or someone they care deeply about) were racialized, "Othered," and/or treated differently (usually negatively) because of their racial group, racial affiliation, etc. It is these moments of "racial witnessing" that are pivotal in the development of "los conscientes." These were the more critical-minded preservice teachers who demonstrated a greater understanding regarding race and racism and the impacts it has on the educational system and human lives. This article argues that it is not a specific variable and/or experience (such as those gained in field experiences) that creates race consciousness among preservice teachers. It is the accumulation of racial witnessing events that allow for a deeper understanding of how race dictates lives.