A professor at York University in Toronto has faced backlash after accusing Israel of murdering Hamas leader Yahya Sinwar. The professor, Heidi Matthews, posted her thoughts on social media following Sinwar's death last week. Matthews argues that under international law, Sinwar was murdered by the IDF as he was injured and no longer fighting. She calls for an independent investigation into the circumstances of his death. The professor's comments have sparked controversy and criticism from various sources.