https://www.breitbart.com/border/2019/04/16/arizona-border-mayor-declares-state-of-emergency-over-migrant-crisis/

The mayor of Yuma, Arizona, declared a “state of emergency” over the border crisis that has maxed out migrant shelters in his community.

“Migrants being released into the community faster than they are departing, and shelters and the staff to run them are at max capacity,” a tweet on the City of Yuma Twitter page states quoting Mayor Douglas J. Nichols. “A state of emergency is declared.”

“By signing this proclamation we are looking to do a couple of things. Making sure that, not just locally but throughout the country, it is clear that we are in a position that needs to be rectified on a national level. Not just within the resources of our Yuma community,” Mayor Nicholls said in a statement published by KYMA in Yuma. “Two is to try to avert the threat of hundreds of people roaming the streets looking to satisfy basic human needs in our community and not having the resources to do so and the reaction of the citizens of Yuma looking to protect their property and their way of life.”

https://www.buzzfeednews.com/article/janelytvynenko/notre-dame-hoax-timeline

Between 2 and 3 p.m. ET (when shit hit the fan)

This is when anti-Muslim conspiracies and hateful posts began picking up steam on mainstream social networks and fringe message boards.

4Chan, an online messaging board known as the internet’s cesspool, was filled with posts targeting Muslims, and some users also called for disinformation to be spread.

The completely unsupported ISIS connection seems to have started with PartisanGirl, a far-right Twitter account that previously spread disinformation about the conflict in Syria, among other topics. She tweeted an incomprehensible statement about ISIS destroying artifacts, and also offered a conspiracy that French President Emmanuel Macron was the one who set fire to Notre Dame to make the Yellow Vests movement — a populist political campaign for economic justice that has been fueling protests — look bad. The Gateway Pundit later published a story trying to link the Bataclan attacks by ISIS in Paris in 2015 and the Notre Dame fire.

8ch didnt make the story, everyone else did