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ROBERT WAGNER: Los Angeles County Sheriff's Lt. John Corina said Friday actor Robert Wagner is not a suspect in his wife Natalie Wood's 1981 drowning.

The sheriff's department said Thursday it is reopening the investigation into actress' death.

The star of "The Searchers," "Splendor in the Grass," "West Side Story," "Rebel without a Cause" and "Miracle on 34th Street" died when she was 43. Her death while boating off Santa Catalina Island with her husband Robert Wagner and her "Brainstorm" co-star Christopher Walken initially was ruled an accidental drowning.

However, many questions have been raised recently about the circumstances surrounding the incident. Lana Wood, the actress' sister, and Dennis Davern, the captain of the yacht, requested the investigation be reopened more than a year ago, The Hollywood Reporter said.

Davern, the author of the 2009 book "Goodbye Natalie, Goodbye Splendor," has said he believes Wagner is responsible for Wood's death.

He told CNN Friday Wagner waited hours to call the Coast Guard after Wood went missing following an argument with her husband. Davern also said Wagner coached those on board the yacht regarding what to tell authorities regarding the incident.

Wagner publicist Alan Nierob issued a statement to CNN Thursday saying the actor and his family "fully support the efforts of the LA County Sheriff's Department and trust they will evaluate whether any new information relating to the death of Natalie Wood Wagner is valid, and that it comes from a credible source or sources other than those simply trying to profit from the 30-year anniversary of her tragic death."

Asked at a news conference Friday whether Wagner is now a suspect, Corina said, "No," People.com reported.

"Already people are coming forwarding and wanting to talk to us," Corina said. "Recently, we have received information, which we felt was substantial enough to make us take another look at this case."

ELISABETH SHUE: Hollywood actress Elisabeth Shue has joined the cast of "CSI: Crime Scene Investigation," CBS said Friday.

Shue's character is to be introduced in the episode scheduled to air Feb. 15. The actress will play an investigator "fresh off an anger-management course, amid rumors that D.B. Russell [played by Ted Danson] fired her when she worked for him in Seattle," the network said in a synopsis.

"While it's difficult to say goodbye to a beloved character like Catherine Willows [played by Marg Helgenberger], it's exciting to start a journey with a new CSI, especially when that character is played by Elisabeth Shue," executive producer Carol Mendelsohn said in a statement. "The new CSI also struggles with 'brutal honesty issues' and suffers no fools."

"Elisabeth's character will share a past, in another crime lab, with Ted Danson's character," added executive producer Don McGill. "The first time things didn't go so well between the two of them. Maybe the second time's the charm, or not."

Shue's film credits include "Leaving Las Vegas," "Adventures in Babysitting," "Deconstructing Harry," "Mysterious Skin," "Hollow Man" and "The Karate Kid."

ARNOLD SCHWARZENEGGER: Hollywood actor Arnold Schwarzenegger said via Twitter he cut his forehead while shooting "The Last Stand" in New Mexico.

"Got a little banged up on set today. Thanks to the medical staff who got me back in action an hour later!" Schwarzenegger said Thursday in his online message, which also featured a photo of him with a bloody gash down the center of his forehead.

TMZ said it was unclear how the action star sustained the injury.

KATY PERRY: U.S. pop star Katy Perry plans to take a year off to try to start a family with her comedian husband Russell Brand, sources told the New York Post.

Perry is due to wrap up her 122-date "California Dreams" tour next week.

The Post said she has told her managers she doesn't plan to start any new projects for the following year because she wants to spend time with Brand and, hopefully, get pregnant.

Perry and Brand wed in October 2010.