Lesbian couple dead in murder-suicide shocker on New Year's Day | VIDEO

HOUSTON -- A New Year's Day argument between a lesbian couple in Houston turned deadly, and police are calling the shooting incident a murder-suicide.

Ana Flores, 24, called 911 about 6 pm Tuesday, Jan. 1, after an argument involving her partner Belinda Espinoza, 29, turned into a heated domestic dispute.

Espinoza's family told police that she had called them before the double shooting and had threatened suicide.

The couple had been together for more than three years and considered themselves to be engaged. Over the years, they had documented their lives on their Facebook pages, where multiple photos show images of a happy couple.

On New Year's Day, Espinoza posted a photo (seen above) of the two showing Espinoza kissing Flores on the cheek, accompanied by a caption saying "I love you too."

One photo, now chilling to view, shows Espinoza pointing a gun at an unknown target in a backyard.