Connection to four murders: Who is behind the mysterious sect of the Zizian?

Connection to four murders :

Who is behind the mysterious sect of the Zizian?

Sect member Teresa Y. on a surveillance video before there was a shootout on the Canadian border.AP

A researcher from Freiburg is shot by US border guards. He belonged to a group that was around the transsexual blogger Ziz Schaff. How did a few IT specialists become a violent sect?