At 22.48pm on May 19th, 1983, a young, single mother pulled up outside McKenzie-Willamette Hospital in Springfield, Oregon, in a blood-spattered Nissan Pulsar, repeatedly shouting that someone had shot her children. Hospital staff rushed to the car and found three children slumped inside. The mother, Diane Downs, had herself been shot in the left arm, which was wrapped in a blood-soaked towel.