The attacker, who threw smoke grenades inside a train station in Taiwan's capital, later continued his rampage nearby and died in falling from a building.
The authorities are vowing to crack down after a mass shooting at a Jewish holiday celebration. Experts say that what the country needs might not be new laws.
Newspaper buildings were set on fire after the death of an activist who was attacked recently. Political leaders fear more violence could derail attempts to restore democracy.
The Caesar Act was imposed in 2019 in response to widespread and systematic violations of human rights by the regime of former dictator Bashar al-Assad.