Who was Hamas leader Yahya Sinwar?

Yahya Sinwar, head of Hamas in Gaza, delivers a speech in Gaza City in April 2022 Picture: Adel Hana/AP

Yahya Sinwar masterminded an attack on Israel that shocked the world, unleashing a still-widening catastrophe with no end in sight.

In Gaza, no figure loomed larger in determining the war’s trajectory than the 61-year-old Hamas leader.