David Chow was a savvy political operative who arrived in Genoa City seeking to avenge the murder of his former fiancée, Carmen Mesta. He quickly zeroed in on Drucilla Winters and Devon Hamilton as the chief suspects in Carmen's murder. He had a tape of an angry confrontation between Dru and his former fiancee, which he released to the press. That put Dru's name at the top of the suspect list. David waged an ugly campaign to drive Dru crazy by hiring a Carmen look-a-like (her cousin, Ines Vargas) to appear around town for only Dru to see, which worked until Neil Winters saw her as well.