Selena went to a Days Inn motel in Corpus Christi, Texas, to retrieve missing financial records from Saldivar, who was accused by Selena's family of embezzling $30,000 from the young singer's boutiques and fan clubs.
The 911 calls uncovered from the archives reveal the chilling moments of what happened after Saldivar shot Selena in one of the motel rooms.
Selena, bleeding from a .38-caliber bullet wound to the back, sought help in the motel lobby, and according to reports, named Saldivar as her shooter before she went to the hospital, where she died.
"She said Yolanda Saldivar in Room 158," said Ruben Deleon, sales director at the Corpus Christi Days Inn where the shooting occurred March 31, 1995, in an Associated Press article from that year.
Another witness, front desk clerk Shawna Vela, stated in the article that Selena burst into the motel lobby crying.
"She said, 'Lock the door! She'll shoot me again,'" said Vela, whose comments were recorded from her testimony during Saldivar's trial.
Clerk: "We have a woman... ran into the lobby... She's been shot... She's laying on the floor and there's blood."
911 operator: "How old is she?"
Clerk: "She looks about 20."
911 operator: "She's in the lobby right now?"
Clerk: "Yes ma'am, she just passed out."
The trial was held at the Harris County Courthouse in downtown Houston, where it was moved due to extensive publicity about the case.
In the calls, Saldivar's name can also be heard.
(Background voice): "Yolanda? She's the suspect? What's her last name...."
911 operator: "Ok, ma'am. Thank you."
You can listen to the entire call above in the video player.
During Saldivar's trial, motel employees testified that they saw the 23-year-old Grammy winner running and screaming down a corridor with Saldivar in pursuit.
They recalled Saldivar stopping short of the lobby, lowering her gun and returning to room 158.
Saldivar has maintained the shooting was an accident. She was convicted of first-degree murder and sentenced to life in prison.
She's serving her term in the Mountain View Unit, a maximum-security women's prison in Gatesville, Texas, about 130 miles southwest of Dallas.
The prison houses Texas' female death row and other high-profile inmates, including Amber Guyger, the former Dallas police officer convicted of killing her neighbor Botham Jean after she said she had mistaken his apartment for her own.
Saldivar, 60, will be eligible for parole in 2025, 30 years after Selena's death.
Archive footage: The trial of Yolanda Saldivar
Archive footage: The trial of Yolanda Saldívar
The Associated Press contributed to this report.