Longtime KTLA news anchor was 64 years old.
Variety said that Rubin had a heart attack after doing his usual early Friday morning Hollywood news show.
TMZ says he had a full cardiac arrest on the way to the hospital from his home in Los Angeles.
In the afternoon of Friday, KTLA also confirmed the news.
The news station wrote on X, “KTLA 5 is deeply saddened to report the death of Sam Rubin.”
Sam was a big deal in the entertainment and local news business, and he was a mainstay on Los Angeles morning TV for decades.
Everyone who knew him was touched by his laugh, charm, and kindness. Sam loved his job as a husband and father, which he did very much. “During this hard time, our thoughts are with Sam’s family.”
It was Rubin’s coworker Frank Buckley who said on KTLA, “The Sam that you saw on the air is the Sam that was off the air.”
“To all of us he shared his mornings with us on television, and to those he worked with behind the scenes at KTLA, we will not forget him.”
Another one of his coworkers, producer Ashley Regan, told him how sad she was when she heard the news.
“Today, Los Angeles lost a legend, and KTLA lost a family member.” I will always be thankful that I got to work with Sam in a newsroom. “Great loss,” Regan wrote on X.