Broken Barriers (1928)

When a mayoral candidate finds out that he will be exposed in a newspaper article, he goes to the political boss who put him up for the job and says he wants to quit. Enraged, the boss pulls a gun on him, and the man promptly dies of a heart attack. The boss stages a fake car "accident" to make that look like his cause of death, but a suspicious newspaper reporter decides to look more deeply into the story.