A man enters the Capital Gazette offices in Annapolis, Maryland, and shoots five people dead. Later it is revealed that the shooter had blocked entrances and egress points to purposefully degrade the timely attendance of first responders.
The shooter identified as J.W.Ramos was captured alive and is stonewalling investigators. However most of what caused this event is plain to see on his social media. It seems that at one point in 2014 comments that he had made were removed.This then set a series of cascading delusions of persecution which compounded upon themselves.
Some of the images speak for themselves
The twitter page, which has a link to archive dot org of court documents.