Rob Reiner and his wife found dead in their L.A. home from apparent stab wounds

By Chloe Melas, Marlene Lenthang and Andrew Blankstein

LOS ANGELES (NBC News) — Filmmaker Rob Reiner and his wife, Michele Singer Reiner, were found dead in their Los Angeles home Sunday, according to a source close to the Reiner family.

The source said the couple appeared to have died from stab wounds.

Los Angeles police officials said Sunday they responded to a report of two deceased at Reiner's Brentwood home but did not identify them. Police said a homicide investigation is underway.

Paramedics were called to Reiner's home on the west side of Los Angeles around 3:30 p.m. A few minutes later police officers were dispatched.

The street where Reiner's home is located was blocked off with caution tape, and several police cars were stationed in the area Sunday evening.

Reiner, 78, was a longtime actor and director known for his films “The Princess Bride,” “When Harry Met Sally,” and “A Few Good Men,” which was nominated for an Academy Award for best picture.

Rob Reiner and Michele Singer Reiner shared three children. He also adopted a child during his first marriage to ex-wife Penny Marshall.

This year, Reiner appeared in four episodes of the Hulu TV show “The Bear” and in “Spinal Tap II: The End Continues,” which he also directed.

NBC News has reached out to a representative for Reiner for comment.

Los Angeles Mayor Karen Bass called the deaths "a devastating loss for city and our country," saying she is "holding all who loved Rob and Michele in my heart."

"An acclaimed actor, director, producer, writer, and engaged political activist, [Rob] always used his gifts in service of others," Bass said in a statement, adding "he and Michele fought for early childhood development and marriage equality, working to overturn Proposition 8. They were true champions for LGBTQ+ rights."