Jim Marshall, a photographer whose images of Jimi Hendrix, the Rolling Stones, Johnny Cash and others in the 1960s and ’70s helped define their subjects as well as rock ’n’ roll photography itself, was found dead on Wednesday morning in a Manhattan hotel. He was 74.

e had been found unconscious in his room by security personnel at the W Hotel on Lexington Avenue and was pronounced dead at the scene, the police said. The cause was not immediately known. An autopsy by the medical examiner was inconclusive, and results of toxicology and other tests were not expected for at least a week, a spokeswoman said.

Rest In Peace, Jim.

Singer Johnny Maestro, who performed the 1958 doo-wop hit "16 Candles" with The Crests and enjoyed a decades-long career with The Brooklyn Bridge, has died of cancer. He was 70.

Les Cauchi, a friend and original Brooklyn Bridge member, said Maestro — born John Mastrangelo — died late Wednesday in Florida. His last residence was in Cape Coral, Fla.

After beginning his career in the 1950s with The Crests — one of the first interracial singing groups — Maestro joined a local New York group, The Del-Satins. It merged with a Long Island band, The Rhythm Method, to form Johnny Maestro and The Brooklyn Bridge in 1968.

Rest In Peace, Johnny.

Robert Culp, the actor who teamed with Bill Cosby in the racially groundbreaking TV series "I Spy" and was Bob in the critically acclaimed sex comedy "Bob & Carol & Ted & Alice," died Wednesday after collapsing outside his Hollywood home, his manager said. Culp was 79.

Manager Hillard Elkins said the actor was on a walk when he fell. He was taken to a hospital and pronounced dead just before noon. The actor's son was told he died of a heart attack, Elkins said, though police were unsure if the fall was medically related.

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Culp was married five times, to Nancy Ashe, Elayne Wilner, France Nuyen, Sheila Sullivan and Candace Culp. He had four children with Ashe and one with Candace Culp.

Rest In Peace, Robert.

Harold W. McGraw Jr., who as leader of McGraw-Hill, his family’s publishing business, helped build it into a billion-dollar enterprise in the 1970s and ’80s, died on Wednesday at his home in Darien, Conn. He was 92.

His son Harold W. McGraw III, who is now chief executive of the company, announced his father’s death, attributing it to natural causes.

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In 1940, he married Anne Per-Lee. She died in 2002. Besides his son Harold, who is known as Terry and lives in Darien, Mr. McGraw is survived by another son, Robert, of Greenwich, Conn., who serves on the company’s board; a daughter, Suzanne McGraw, also of Darien; eight grandchildren; and two great-grandchildren. Another son, Thomas, died in 2006.

Rest In Peace, Harold.

Cherie DeCastro, the last surviving member of the DeCastro Sisters singing trio, has died in Las Vegas. She was 87.

Publicist and former manager Alan Eichler said Monday that DeCastro died March 14 of pneumonia at Valley Hospital Medical Center in Las Vegas.

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She was twice divorced, and is survived by longtime partner Trevor Young. Services were privately held.

Rest In Peace, Cherie.