(Marysville, WA)  --  The Tulalip Tribes say they're grateful for the outpouring of support they've received from the community and around the world, following last week's deadly shooting at Marysville Pilchuck High School.  In a statement released yesterday, the Tribes denounced what they call "the horrific actions" of Jaylen Fryberg, the 14-year-old tribe member who shot two students to death and wounded three others before killing himself.  The Tribes say schools in the Marysville district have received threats, with some directed at Native children.  The statement says the Tribes support their people who are suffering through times of loss, including the family of Jaylen Fryberg.