After nearly 36 years, two sisters have finally learnt the truth about what happened to their mother after they were found abandoned as childrenin a public bathroom.

Marina Ramos, 28, was found naked and fatally stabbed in December 1989. Her body had been left in a remote stretch of scrub where she was believed to have been killed. At the time, her identity was not known.

Then, two days later, the two girls were found alive but alone in a park toilet - Jasmin was two-months-old and Elizabeth was 14-months-old. According to police reports, a passerby heard children crying in the women's restroom and found the girls lying on the wet floor without any adults nearby. Police didn't know their names either, and for years it remained a mystery.

READ MORE: Chilling search history of mother who murdered her 8-year-old daughter exposed

READ MORE: Loving mum, 44, died in 'impulsive act' following an argument

The siblings were placed in foster care and "stayed there for a significant amount of time" before being adopted by a family and raised together.

Their mother had been discovered in a remote section of the Mohave Desert in Arizona, US, - and she remained a Jane Doe for years, right up until the case was reopened in February 2022.

It was only then that investigators were able to match fingerprints from Ramos's June 1989 shoplifting arrest in California to her body.

Swabs from family members then found a 'high DNA match' to one of her now-adult daughters, who had grown up in Ventura County. The two girls finally found out what their real names were - and who their biological mother was.

"This is what I've been searching for and wanting for a very, very long time, and to figure out where I came from and who my family was," Jasmin, who goes by her adopted name Tina, told ABC15 Arizona.

Tina and Elizabeth, who now goes by Melissa, were contacted by sheriff's office investigator Lori Miller about the news.

"As soon as [Miller] said she was a homicide investigator, I had this gut feeling she knew something about my parents," Elizabeth told the outlet.

"Whether it was my mum or dad, she knew something. And I don't know, I just ran out of the room and didn’t even know how to process what was being said."

However, police have still not identified a suspect in Ramos's murder. "While we are excited to announce that one part of this 36-year-old mystery has been solved, the search for the suspects involved in the homicide of Marina Ramos continues," the sheriff’s department said.

Witnesses described seeing two Hispanic males and a Hispanic woman with the two girls at the park before they were found in the bathroom, the New York Post reports.