New Witness Emerges in Natalie Wood Death Investigation

He's the witness who was on board a boat just 50 yards from the boat Natalie Wood vanished from exactly 30 years ago.

Anthony Sakal was just nine years old at the time, aboard a boat with his mom, Marilyn Wayne, who stunned the world with her revelation about that fateful night on 48 Hours Mystery.

INSIDE EDITION's Megan Alexander spoke with Sakal.

"Tell us what you heard," said Alexander.

Sakal said, "I heard, 'I'm drowning. Please help me,' that sort of thing. I heard from the other boat, 'Don't worry, we're going to save you.' "

On 48 Hours Mystery, Wayne said, "I heard a woman calling for help. 'Help me! Somebody please help me! I'm drowning!' " said Wayne.

Now, for the first time, her son is sharing his own memories from November 29th, 1981.

Sakal said, "They responded to her that 'We're going to save you. Hang on,' and then nothing happened after that. Nobody saved anybody."

Sakal says the people on the other boat sounded drunk and probably didn't believe the cries for help were serious.

"They thought somebody was joking with them so they were probably responding in a playful way," said Sakal.

So nobody went to the rescue.

Alexander asked, "Have you ever told authorities what you shared with us?"

"I have not. Nobody ever approached me. Nobody ever asked my anything," said Sakal.

With the world reeling over the announcement that the Natalie Wood case was being reopened, the boy who says he heard her cries for help remains haunted by the tragedy.

"Why didn't they go out there and do anything? I don't know. I wish that maybe if I were a few years older, who knows? Maybe I could have done something," said Sakal.