According to authorities, it seems Brea believed his mother was possessed by Satan, thus necessitating the application of his admittedly extreme yet crudely effective exorcism technique.
An official representative for the Masons has claimed that Brea was not a Brother. "There are groups out there in Brooklyn and elsewhere that call themselves Freemasons but they are not recognized by the Grand Lodge of the State of New York," explained the unnamed rep. "Anyone who knows the rituals can go and say 'I’m going to form a Lodge.' But they are not recognized. They are called clandestine."
Traumatized witnesses claim they could hear Yannick screaming and pleading for her life as her son shouted: "Repent, sinner! Repent! You never accepted Jesus!" They also claim that police present at the scene inexplicably refused to break down the door and stop Brea's attack until Mom's screams had ceased, and it was obviously too late to save her.
Why did police stand by and let this woman be hacked to death? NYPD officials claim "protocol", that the officers who arrived on scene had instructions to wait for S.W.A.T., who showed up an hour later. I've sniffed around the underweb and have found no evidence that Yannick Brea had ever made claims of a conspiratorial nature about the events of 9/11, or even that she had ever been involved in the "9/11 Truth" movement, but my search was by no means exhaustive.
If anyone out there reading this has any further information about this case, please post it in the comments section. In the meantime, I'll keep sniffing, and I'll keep you posted.