We speak with two physicians who knew Dr. Hammam Alloh, a Palestinian nephrologist at Gaza's Al-Shifa Hospital who was killed Saturday in an Israeli airstrike. They recall him as a "committed physician, wonderful father" and "beacon of light." He had refused to heed Israeli directives to evacuate in order to continue providing care to his patients. "He spent a decade learning how to serve his people," says Dr. Tanya Haj-Hassan with Doctors Without Borders.

"Beacon of Light": Fellow Doctors Recall Dr. Hammam Alloh, Gaza Doctor Killed by Israeli Airstrike - YouTube