At least two others have sustained injuries and have been moved to a hospital, police said.
The shooting reportedly happened during a Dallas Cowboys watch party. The motive of the shooting is not known yet.
Once inside the home, police found nine gunshot victims. An investigation for homicide is on, NBC reported.
Four police officers killed in Egypt blast
The five had in their possession different types of guns in various areas of Cairo including El Marg, Ain Shams and Al-Salam. The attack occurred near the town of El-Arish, administrative centre of province Northern Sinai.
One neighbor, Stacey Glover, told the Morning News that the party had started in the afternoon, with people laughing and grilling outside. The suspect's death brings the total number of dead to 8 people.
Officers confirm to NBC 5 that all the victims were adults.
Plano police spokesman David Tilley said that several police initially rushed to the scene after receiving reports of multiple gunshots.
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As Ms Deklyen's family prepares to farewell her at a funeral service on Tuesday, baby Life's battle is only just beginning. She was diagnosed with an aggressive form of brain cancer called glioblastoma in April after suffering from bad headaches.
The victims and suspect haven't been identified.
When the first officer arrived, he confronted the suspected shooter inside the home, opened fire and killed the suspect. The officer who fired the shots has been placed on administrative leave.
It is unclear how the people in the house were connected.
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Marines unload MV-22B Osprey tiltrotor aircraft aboard the amphibious assault ship USS Kearsarge in the Atlantic Ocean. Also preparing to leave Norfolk was the aircraft carrier USS Abraham Lincoln .
Police in the U.S. state of Texas have shot dead a man after he opened fire on people at a party, killing seven.