-Nikolas Cruz posts about being a professional school shooter.

-He uses his real name in the post.

-Person that noticed the comment reported it to the FBI.

-FBI was given multiple warnings.

-FBI main office apparently did nothing. Did not inform the local branch.

-The killer talks repeatedly about shooting up the school.

-Classmates were repeatedly joking that he was going to shoot up the school.

-Police were called to his residence over 39 times.

-The police apparently never escalated their concerns - or if they did, they went nowhere.

-the killer was in JR ROTC.

-He was receiving training in warfare (how to shoot guns).

-There are videos surfacing of him getting in fights at the school.

-He was pre-dispositioned to violence - both words and actions.

-His father died when he was young. His mother died late last year.

-He had minimal friends/support network.

-He was outcast at school and even the "artsy" students wouldn't interact with him.

-The killer posted videos of him cutting himself.

-Child Welfare was involved and investigated him.

-He had pictures and videos of him with multiple weapons on his instagram.

-Even with all this, he passed a background check and mental health evaluation to purchase his weapon.

-David Hogg (journalist classmate) has a father that works/ed for the FBI.

-Apparently, he never told his father about a violent classmate that has weapons, was getting JR ROTC training, and threated to shoot up the school.

-If you watch the interviews, his lines were memorized and recited very well. No emotion; well rehearsed.

-Pulse night club shooter - interviewed by the FBI beforehand.

-Boston bomber - interviewed by the FBI beforehand.

-New Mexico shooter - interviewed by the FBI beforehand.

-Ft. Hood shooter - was on the FBIs watch list.

-Charleston shooter - known by the FBI; got his gun due to FBI agent error.