Monica Caison : « Caison : Many missing persons who have been missing for a long time are not found . She says the old `` knock and tell '' method can make the difference in finding someone . Caison : Communities can do more to assist law enforcement in investigations .
Monica Caison : Three Cleveland women 's escape aided by a neighbor is uplifting . Caison : Many missing persons who have been missing for a long time are not found . She says the old `` knock and tell '' method can make the difference in finding someone . Caison : Communities can do more to assist law enforcement in investigations .