Yahya Sinwar, the Hamas leader who was killed by Israeli forces in the Gaza Strip, was the mastermind behind the Oct. 7 attack on Israel that sparked the war. He rose to the top position in August after the killing of the previous leader,

His rise was the culmination of decades of planning and outmanoeuvring of opponents, turning a movement into the Sinwar show. In prison in Israel, this violent and calculating man became more systematic in his thinking,

Israel succeeded Wednesday in its year-long mission to kill Hamas leader Yahya Sinwar, the man accused of being one of the masterminds of the October 7, 2023 attacks.