KNX was a strong competitor in the Los Angeles market while Crane was a morning personality , but began declining in popularity after he left to star in the CBS television series '' Hogan 's Heroes '' . Following the example of corporate sister station WCBS in New York City , which had enjoyed renewed success with an all-news format , KNX then became an all-news station in the spring of 1968 . By chance , its first major breaking news coverage was a major worldwide story that happened locally : the assassination of Democratic Presidential candidate Robert F. Kennedy , in the Ambassador Hotel in Los Angeles , on June 5 of that year
assassination
Assassination of Robert F. Kennedy
KNX (AM)