Subway tube prevents gas dispersal; poison is concentrated and WAY more lethal; same deal as the 1993 Tokyo subway sarin gas attack.
Worker gear and flares would convince the subway driver to stop and wait, then everyone dies while waiting for the “accident” to clear —fumes are concentrated.
Clearly an attack attempt —muzzie likely.
Yep, that’s what I’m thinking as well... I sure hope the LEOs are (behind the scenes obviously) NOT buying this kid’s story.
Wanna bet the student’s name is Mohammed?