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- As Las Vegas grieves, investigators struggle to uncover motive behind shooting rampageWashington Post
- Las Vegas massacre: Mountain of evidence emerges, but no motiveCNN
- Motive for Las Vegas concert massacre baffles investigatorsReuters
- Las Vegas shooting latest: Trump calls gunman ‘demented’ on Puerto Rico visitThe Guardian
- Gun Control Tech Exists. But It Won’t Stop Mass ShootingsWIRED