Man Mows Down Family With His Vehicle, Then Starts Shooting

Dad and daughter, 18 months old, killed in Montana tragedy
By Newser Editors and Wire Services
Posted Jul 20, 2022 1:59 AM CDT
Man Mows Down Family With His Vehicle, Then Starts Shooting
Stock photo.   (Getty Images / Ajax9)

A man drove his vehicle into a family as they walked near Glacier National Park then got out and began shooting at them with a shotgun, killing one man and mortally wounding a toddler before one of the victims managed to kill the assailant after he ran out of ammunition, authorities said Tuesday. Killed in the attack on the Blackfeet Indian Reservation in northwestern Montana were David Siau, 39, of Syracuse, New York, and Siau's 18-month-old daughter, McKenzie, the AP reports. The assailant, Derick Amos Madden, 37, had been in a prior relationship with the woman who killed him and had mental health issues, according to the Glacier County Sheriff’s Office.

Madden drove his vehicle into the Siau family just before 9pm Sunday as they walked along a roadway in the small town of East Glacier Park, hitting some of them before crashing into a tree, the sheriff's office said. As members of the family tried to run, Madden shot and killed David Siau and mortally wounded McKenzie. The young girl was being held by her mother, Christy Siau, 40, who was shot and wounded. After running out of ammunition, Madden used a knife to attack and critically wound Christina Siau, 30. But she fought back and fatally wounded Madden, who died at the scene, authorities said. Two minor children who were present were able to run away and escaped injury.

Christina Siau was originally from New York and had been living in East Glacier, where her family was visiting, Jody Hickey, a spokesperson for Glacier County Sheriff Vernon “Napi" Billedeaux, said. It was not clear what provoked Sunday’s attack beyond the prior relationship between Madden and Christina Siau. The sheriff’s office described the tragedy as an “isolated...incident with a clear nexus between the victims and Madden” and said the investigation was continuing. Local authorities did not know of any previous interactions that Madden had with law enforcement. He had been working recently in East Glacier, a tourist town and gateway to the mountains in Glacier National Park, according to Hickey.

(More Glacier National Park stories.)

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