The Hamas leader who was killed by Israeli forces in Gaza, Yahya Sinwar, was the mastermind behind the Oct. 7 attack on Israel that sparked the war

Sinwar's death provides a symbolic victory for Israeli Prime Minister Benjamin Netanyahu, who promised to punish all those involved in the attack last year, which saw around 1,200 people killed and 250 hostages taken into Gaza, per figures cited by the Associated Press from Israeli authorities.