A little-known legal doctrine allows suspects to be charged with murder even if they didn't kill someone. The felony murder rule is a centuries-old legal doctrine under which a person who commits a felony can be charged with murder even if they didn't intend to kill someone or if they weren't directly responsible for a person's death. In some jurisdictions, fatal shootings by police have resulted in the suspects -- but not the officer who pulled the trigger -- being charged with murder. NewsHour Weekend's Megan Thompson takes a closer look at two cases in Illinois and Alabama.