Hamas leader was killed by explosive device planted months before expl… CNN 0 121 08.02 00:43 https://www.youtube.com/watch?v=12_YTNLq3NY + 13 https://www.youtube.com/feeds/videos.xml?channel_id=UCupvZG-5ko_eiXAup… + 13 Hamas leader was killed by explosive device planted months before explosion, source says