Knowledge and resources necessary to shoot up a school: location of dad's AR-15, bullets, and how to load.
Knowledge and resources necessary to develop AI-proposed toxins: multiple PhDs, thousands of square feet (probably 10s to low 100s of thousands) of lab space, including nasty stuff, like bromides and heavy metals, and testing and evaluation of various delivery vehicles, ranging from canes with needles to air-launched warheads with atomizers.
Knowledge and resources necessary to develop AI-proposed toxins: multiple PhDs, thousands of square feet (probably 10s to low 100s of thousands) of lab space, including nasty stuff, like bromides and heavy metals, and testing and evaluation of various delivery vehicles, ranging from canes with needles to air-launched warheads with atomizers.