Arlington police say a woman and her former boyfriend died in an apparent murder-suicide at their home.
Margarita Santos-Najera's 19-year-old daughter early Monday discovered her dead in a bedroom, police said.
Police say the daughter hid in a closet with her unharmed infant child and called 911.
Police who were arriving heard a gunshot from within the house. Officers discovered the body of 41-year-old Antonio Astello in another bedroom.
Investigators believe the pair had split up, but Astello was still temporarily living in the home and he killed Santos-Najera, 44, then took his own life.
The daughter's name was not immediately released by police.