On the evening of March 8, 2017, 20-year-old Dakota Steagall made good on a promise he first made more than two years earlier.
Kaitlyn Carroll Peak, 22, was shot repeatedly and left for dead while Steagall kidnapped her 7-week-old baby outside a Mansfield apartment complex where Steagall was living.
How the justice system failed to prevent a young Mansfield mother's murder despite years of clues
Kaitlyn had broken off her relationship with Steagall more than a year earlier after repeated assaults and threats to both to her and her family.
She's not alone. Nearly three women are killed every day in the U.S. by intimate partners.
This is how it happens: