Summary
- Israel Defense Forces and Shin Bet are investigating whether Hamas terror chief Yahya Sinwar was killed in Gaza Strip operations
- Sinwar, known as the Butcher of Khan Younis, is suspected to be behind the Oct. 7 massacre of Israeli civilians
- Sinwar had served 22 years in an Israeli jail before being released in a prisoner exchange for Gilad Shalit
- After his release, Sinwar became a prominent leader in Hamas and eventually succeeded Ismail Haniyeh as its leader