A father shot his estranged wife to death and then killed himself during his daughter's 16th birthday party, police said.
The shootings happened outside the front door of the teen's grandparents' house in Grapevine, Texas, late Saturday.
Kristi Suckla, 44, had moved to her parents' house with her teenage son and daughter after the couple separated.
Grapevine police said her husband Kelly Suckla, 43, came over to the house Saturday night for the birthday party.
An argument broke out and investigators said Suckla then shot and killed his estranged wife with a handgun before taking his own life.
The children and grandparents were inside the home and were not physically hurt.
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