The FBI knew in advance the Pulse Nightclub shooter (Omar Mateen) & were tipped off by the local sheriff. 53 dead.
The FBI knew in advance the LV shooter had huge weapons stashes (Paddock). 60 dead. 800 injured.
The “kidnapping” of the Michigan Governor plan was set up by FBI.
The FBI knew in advance the Charleston church shooter (Dylann Roof). 9 dead.
The FBI knew in advance the San Bernardino Terrorists (Rizwan Farook and Tashfeen Malik). 14 dead.
The FBI knew in advance the Sandy Hook shooter (Adam Lanza). 26 dead.
The FBI knew in advance the Boston Marathon Bombers (the Tsarnaev brothers) tipped off by Russians. 3 dead, hundreds injured.
The FBI knew in advance the Parkland High School shooter (Nikolas Cruz). 17 dead.
The FBI knew in advance the Fort Hood shooter (Nidal Hasan). 13 dead.
The FBI knew in advance the Boulder Colorado shooter (Ahmad al-Aliwi Alissa). 10 dead.
The FBI knew in advance the Garland, Texas, shooters (Elton Simpson and Nadir Soofi).
The FBI knew in advance of 9/11 that terrorists were training in US flight schools. 2,977 dead.
The FBI suppressed a massive amount of evidence concerning McVeigh’s accomplices of the Oklahoma bombing. 168 dead.
The FBI knew in advance that the Nashville bomber was building bombs (Anthony Quinn Warner).
The FBI entrapped General Flynn.
The FBI FISA abuse collusion on Trump.
The FBI knew in advance and facilitated 1/6.
The FBI and CIA is a terrorist organization weaponized against its own countrymen.
There weren't any. The school had been closed.