The legendary Frank Mankiewicz, who made his PR mark at Bob Gray's Gray & Co. in DC and as chairman of Hill & Knowlton, has died from massive heart failure. He was 90.

frank-mankiewiczAs press secretary for New York Senator Robert F. Kennedy., he made his mark on the national stage. It was Mankiewicz who announced the assassination of Kennedy during the 1968 presidential campaign.

The lawyer-by-training first met RFK while serving as Peace Corps director in Peru.

Mankiewicz went on to manage George McGovern's presidential bid and run unsuccessfully for Maryland Congressional seat.

In 1977, he became president of National Public Radio, tripling its listener base during a seven-year stint.

Born in Beverley Hills, Mankiewicz's father, Herman, co-wrote movie classic, "Citizen Kane."

H+K vice chairman Tom Hoog has posted a tribute to Mankiewicz on the H+K site this morning.