The service will be Saturday afternoon in Decatur, Alabama, PEOPLE has confirmed
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The Texas daughters who authorities say were gunned down by their mom last Friday will be laid to rest on Saturday in Alabama, PEOPLE has confirmed.

The funeral for Madison, 17, and Taylor Sheats, 22, will be held 2 p.m. local time at the Shelton Funeral Home in Decatur, a funeral home representative tells PEOPLE.

Visitation for the family will be Saturday from noon to 2 p.m. The girls will be buried in Limestone Memorial Gardens.

The funeral service for mom Christy Sheats, 42, “will not be here,” the Shelton Funeral Home representative says.

Authorities have said they responded Friday afternoon to a tragic scene outside the Sheats family home in Katy, Texas: Both Madison and Taylor were lying in the street, fatally shot as their mother chased them outside following a family meeting.

Christy was shot dead by a Fulshear city police officer after she refused to drop her gun, authorities said.

The girls’ father, Christy’s husband, Jason, was present but escaped uninjured.

Both girls made 911 calls from inside the home as the shooting began, authorities said. In the audio, Jason, Madison and Taylor can apparently be heard yelling and crying, bargaining with Christy not to shoot.

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A motive in the shooting – and what, exactly, was discussed right before – remains unclear as the investigation continues. But the Fort Bend County Sheriff’s Office told PEOPLE that Christy had a history of mental illness, and deputies had three times responded to the Sheats home in recent years for calls about suicide attempts.

Matthew Wiley, a childhood friend of Taylor’s, told PEOPLE she had recently expressed a fear for her safety.

“She said, ‘There’s a gun in the house and it makes me feel uneasy,’ ” Wiley said. “She felt so unsafe.”

The Sheats family has deep roots in Alabama: Christy is reportedly from Decatur, and Jason had lived in nearby Trinity.

With reporting by HARRIET SOKMENSUER