On June 28, 2017 Walking on the Roberto Clemente Bridge near PNC Park in Pittsburgh, PA, umpire John Tumpane sees a woman climb over the railing. Realizing she is suicidal and about to jump into the Allegheny River below, Tumpane reaches and grabs her, and then gets assistance from other passers-by to prevent her from making the fatal leap until emergency workers can arrive on the scene.
Source
Baseball Reference June 28