In late 1985 , she left for San Francisco to take a job as a news anchor at KRON . She later stated that ABC News president Roone Arledge 's cancellation of a '' 20/20 '' story she had worked on based on a book by Anthony Summers about Marilyn Monroe 's relationships with President Kennedy and his brother Bobby Kennedy , which was to have been featured in that year 's season premiere , had precipitated the move ; after being shortened and postponed , the segment was canceled shortly before it was to have aired . At the time of her move she denied a connection , and that her resignation was related to that of Geraldo Rivera , who left shortly before her after criticizing the decision . KRON advertised her arrival with the slogan " The Chase is on ! " . In addition to co-anchoring the station 's news broadcasts , she also hosted news documentaries , including one on environmental degradation in Leningrad , and frequently reported on the AIDS crisis and on children . She was in Europe when the 1989 Loma Prieta earthquake struck the Bay Area
1989 Loma Prieta earthquake
1989 Loma Prieta earthquake
Sylvia Chase