Horizon Media Vet Serena Duff Has Died

She helped the agency build up its Los Angeles office

Serena Duff was evp, general manager for Horizon Media's Los Angeles office Horizon Media

Serena Duff, an executive at Horizon Media who has led the agency’s Los Angeles office for over a decade, died last Friday at the age of 54 after a long struggle with colon cancer.

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@ErikDOster erik.oster@adweek.com Erik Oster is an agencies reporter for Adweek.