well, they dead now...More info here:
Of note:
“Landeros, who identified by the non-gender-specific pronouns they/their/them, was divorced and shared joint custody of their two daughters with Landeros’ ex-wife. Landeros enrolled one of the daughters in the school several days before the incident without informing the ex-wife, Perlow said. Landeros’ ex-wife learned of this and brought custody paperwork to the school. The school called Timm, the school resource officer, following the district’s practice of calling in law enforcement to mediate custody disputes. The school also called Landeros. Johns, another school resource officer, responded when Timm called for assistance.”
well, they dead now...