An arrest has been made in connection with the stabbing death of an Oklahoma City mother, police officials announced. Selena Escalera-Pachecho, 24, was stabbed to death in front of her five children, according to Oklahoma City police.The children are between 6 months and 9 years old. Family members said they saw their mother’s throat slit."They went to the room, and the last goodbye was, like, she said, 'Stop,' and she just passed out. They saw everything," said a family member who did not want to be identified. "We're trying to get questions answered. What happened? We need some information."Police found Escalera-Pachecho on Saturday in an apartment near Southwest 74th Street and Blackwelder Avenue. According to police, an arrest warrant for first-degree murder was issued Monday, and 24-year-old Gabriel Aguilar turned himself in to authorities.