The mother of Keith Siegel, who has been held in Gaza for 424 days, passed away last night (Tuesday) before her son returned from captivity. Keith's daughter, Ilan, wrote on her Facebook account: "My father could not say goodbye to his mother who will never return. He won't stand with us tomorrow at the cemetery, he can't say farewell to the woman who raised and loved him all his life." Ilan added: "A violent and murderous terrorist organization dictates our lives from the Gaza Strip to the great United States, and the world remains silent." Related articles: Vance meets Hamas captivity survivors and hostage families Freed hostages thank Trump, call for efforts to free others 'At threshold of the Festival of Freedom, we must not give up' Liri Albag's story of survival In April, Hamas released a video featuring Siegel. "I want to tell my family that I love you very much. It is important for you to know that I am okay, and I hope very much that you are too. I have very fond memories of Passover last year when we all celebrated together, and I hope there will be a wonderful surprise for all of us," he said.