The FBI says they believe the AR-style rifle the Trump rally shooter used was legally purchased by the gunman’s father.
Kevin Rojek, special agent in charge of the Pittsburgh Field Office, told reporters that authorities don’t yet know how the shooter gained access to the weapon, and whether he took it without his father’s knowledge.
“These are facts that we’ll flesh out as we conduct interviews,” Rojek said. Authorities recovered the weapon at the scene of the shooting.