text: Grim Picture of Gaza's Mayhem  GAZA CITY -- Jumaa Saqqa, a senior physician at Gaza's Shifa Hospital, shuffled through a thick stack of photographs like a deck of playing cards. These are cherished possessions -- pictures of friends and neighbors, babies and children, famous people, militants, elderly men and women. Occasionally his eyes lit up as if he'd found an ace, and he flipped the picture on the desk.