No one knows exactly how long Celeste Rivas Hernandez was dead before she was found, but investigators say it was at least several weeks and possibly months before September 8, 2025.

What authorities have actually said

  • Celeste’s body was found in a Tesla on September 8, 2025, in Los Angeles.
  • The Los Angeles County medical examiner described her body as “severely decomposed” and said she appeared to have been dead for an extended period before discovery.
  • LAPD later stated she had likely died “several weeks” before her body was found in the car.
  • A detailed timeline assembled from digital and investigative evidence suggests she was still alive into early 2025, with a prosecution theory placing her death sometime in the spring of 2025, but this has not been confirmed as an official time of death.

Because of the advanced decomposition and a sealed medical report, investigators have not publicly released a precise interval like “X days” or “X months,” only that she died well before September 8 and at least weeks earlier, possibly longer.

Information gathered from public forums or data available on the internet and portrayed here.