Two of the family were shot and killed on the side of a Montana road, including a toddler, before the baby’s aunt ended the rampage by killing their assailant. The Siau family was walking down a road in the town of East Glacier, near the eastern entrance to Glacier National Park in Montana, when the attack began just before 9 p.m. Authorities identified the shooter as Derick Amos Madden, 37, of Goldsby, Oklahoma. plowed into the family before crashing into a tree. He got out with a shotgun and killed David Xiao, 39, who was visiting from Pompey, New York. Madden then opened fire on those who fled, hitting Christy Siau, 40, and her 18-month-old daughter, McKenzie, who Christy was carrying. McKenzie was fatally injured while Christy was seriously injured and would eventually survive. Madden then attacked David’s sister Christina Siau, 30, who lived locally in East Glacier. Madden had run out of ammunition, officials said, so he switched to using a knife, stabbing Christina. But Christina fought for her life and, despite serious injuries, managed to kill Madden on the spot. Two of the Pompey couple’s other children managed to escape the attack unharmed, police said. “David and Christy Xiao are caring, sweet people who look out for others,” Michael Mazzye, pastor of the Reformation Church in North Syracuse who knows the couple, told Syracuse.com. “I cannot imagine this horrible tragedy. It is unthinkable.” Madden had mental health issues and had previously been in a relationship with Christina, the woman who killed him, according to the Glacier County Sheriff’s Office. They described the incident as “isolated” with “a clear link between the victims and Madden”, adding that the investigation is ongoing. It is still unclear what sparked Madden’s horrific attack on his ex and her family. Local authorities said they were not aware of any prior interaction between Madden and law enforcement. After David died at the scene, McKenzie, Christy and Christina were rushed to the Indian Health Services hospital in Browning, about 13 miles away. McKenzie was pronounced dead there, while her mother and aunt were airlifted to another hospital for further treatment.
