Last updated at 12:30 p.m. Sept. 11.

Eight people were fatally shot at a Plano home Sunday evening, and their attacker was killed by a police officer.

Authorities were called to the home in the 1700 block of West Spring Creek Parkway, near Custer Road, about 8 p.m. after gunshots were reported.

A nearby officer responded and heard more gunfire as he arrived.

“He made entry, and that’s when he observed several victims inside and then engaged the suspect,” said Officer David Tilley, a police spokesman.

The officer fatally shot the gunman, whose name has not been released. The officer was not hurt.

1 / 6Plano police and the Texas Rangers work the scene of a shooting at a home in the 1700 block of West Spring Creek Parkway in Plano on Monday.(David Woo / Staff Photographer) 2 / 6Plano police and the Texas Rangers work the scene of the shooting on Monday morning. (David Woo / Staff Photographer) 3 / 6Plano police and the Texas Rangers at the scene of the shooting. (David Woo / Staff Photographer) 4 / 6Police work the scene of the shooting late Sunday.(Vernon Bryant / Staff Photographer) 5 / 6A police investigator takes photos at the scene of the shooting.(Vernon Bryant / Staff Photographer) 6 / 6People watch as police work the scene of a mass shooting.(Vernon Bryant / Staff Photographer)

The victims, who also have not been publicly identified, were all adults. They had been watching the Dallas Cowboys game when the violence began, neighbors said.

“I’ve been here all my life,” Tilley said. “I’ve never heard of anything like this.”

Two other people at the home were hospitalized, and one of those victims later died, Plano’s police chief said Monday.

Details come into focus

Meredith Hight (Facebook)

Relatives confirmed to WFAA-TV (Channel 8) on Monday that one of the victims was 27-year-old Meredith Hight and that her estranged husband was the shooter.

“She was a cook, and a quite fine one, and she loved hosting friends and families,” said her mother, Debbie Lane. “This was her first opportunity to do it after the divorce, and he didn’t take it well.”

From a news helicopter Monday morning, two bodies could be seen in the backyard of the home as police laid out tarps and continued to investigate.

Through the end of July, Plano police had five homicides. This crime brings the tally to 13.

“I don’t remember ever having double digits,” Tilley said.

A neighbor said a friend of one of the homeowners said the violence had been sparked by a domestic dispute, but police have provided no details about the relationships between the victims and the gunman.

Hight and her husband, who bought the house in 2015, sought a divorce in July and had been estranged since March, according to court records; Monday would have been their sixth wedding anniversary.

Hight’s attorney in the divorce case declined to comment Monday.

Plano police planned a news conference for 2 p.m. to update the public on the case.

Neighbors in horror

One man approached a neighbor at the scene, asking for the address where the killings happened. When he was told, he doubled over in agony.

“I’m friends with probably everyone that was in that house,” he said, explaining that there had been a Cowboys watch party there.

As he talked to officers, he doubled over again. A few minutes later, he sprinted to his car and drove away.

Neighbor Lauryn Nichols said she had a friend who’d been in the house and she didn’t know what had happened to the person.

“I’m worried,” she said. “It’s like one big family here.”

Another neighbor, Stacey Glover, said the party had started early in the afternoon and she’d seen people laughing and grilling outside.

She heard shots about 8 p.m., opened her door and smelled gunpowder. When police arrived, she heard them yelling, “Hands up” before more shots rang out.

“My heart is still beating like a million miles per hour,” she said. “I know I’m not going to sleep tonight.”

More than three dozen police vehicles were still at the home hours later. The Texas Rangers were also investigating the shootings because an officer had been involved.

Police said they executed a search warrant of the home and were processing the crime scene Monday morning.

Spring Creek Parkway between Green Oaks Drive and Blue Ridge Trail was expected to remain closed through the morning rush hour. Police said drivers would need to find alternate routes.

Staff writers Jamie Knodel and Naheed Rajwani contributed to this report.