FBI still unsure how would-be assassin got rifle onto roof during attempt against Donald Trump. Speculation that rifle was carried in a backpack and assembled on the roof.
Key Points
FBI Deputy Director Paul Abbate states no conclusive evidence on how rifle was taken to the roof.
Speculation that rifle was carried in a backpack and assembled on the roof.
Pros
Detailed investigation into the incident.
Cons
Lack of definitive evidence on how rifle was transported to the roof.