Natalie Wood's death certificate has been changed to reflect some of the uncertainties and lingering questions surrounding the actress' drowning.
The document was amended earlier this month and shifts her death from an accidental drowning to "drowning and other undetermined factors."
The document states that circumstances of how Wood ended up in the waters off Catalina Island in November 1981 are "not clearly established."
The changes occur nine months after sheriff's homicide investigators renewed their inquiry into Wood's death shortly before its 30th anniversary.
Chief of Detectives William McSweeney said the decision to amend the death certificate was made by the coroner's office. He wouldn't go into detail.
"I would just say undetermined is descriptive," he said.
McSweeney said detectives still have work to do on the case, but that doesn't necessarily mean that a major shift is coming or necessarily ever will.
"We don't close these cases," he said. "These cases have active periods and more passive periods. We're moving toward the end of an active period."
Conflicting versions of what happened to Wood that night have cast suspicion on her actor-husband Robert Wagner, but he is not a suspect.