The roof from which gunman Thomas Matthew Crooks, 20, shot at Donald Trump had reportedly been flagged as a potential security problem by the Secret Service before the assassination attempt, according to a report by NBC News.
Crooks climbed on to the roof of a building belonging to a glass research company which was 150 yards from where Trump was speaking on a stage in Butler, Pennsylvania. A source told NBC News:
Someone should have been on the roof or securing the building so no one could get on the roof,”
The Secret Service had indicated the building should be under the juridiction of local law enforcement because it was outside the rally perimiter, according to the report.
