 SOURCES WHO HAVE BEEN BRIEFED ON THE INVESTIGATION TELL US THAT THE SECRET SERVICE HAD KNOWLEDGE OF A SUSPICIOUS PERSON ABOUT 20 MINUTES BEFORE THE SHOOTING TOOK PLACE. FORMER PRESIDENT TRUMP WAS ALLOWED TO TAKE THE STAGE AT ABOUT 6 O'CLOCK AND WE'RE TOLD THAT HE WAS ALLOWED TO TAKE THE STAGE IN THE FIRST PLACE DESPITE THOSE REPORTS OF A SUSPICIOUS PERSON BECAUSE THOSE REPORTS DIDN'T MENTION ANYTHING ABOUT A GUN.