Richard Sadler, PhD, assistant professor of Family Medicine at Michigan State University and a UM-Flint alumnus, shared insights from a historic, geographic, and public health perspective. January 22, 2016 600 × 400 UM-Flint Begins Free Community Course on the Flint Water Crisis Richard Sadler, PhD, assistant professor of Family Medicine at Michigan State University and a UM-Flint alumnus, shared insights from a historic, geographic, and public health perspective.