whodunnit

Level 1 of the Dungeon
(0, 0, D:1)
  a +0 club
  a goblin corpse (skeletalised by now)
(0, 3, D:1)
  a +0 scale mail
(2, 0, D:1)
  a +1 barding
(3, -14, D:1)
  a frilled lizard corpse (skeletalised by now)
(5, -17, D:1)
  6 stones
(13, 8, D:1)
  a hobgoblin corpse (skeletalised by now)
(14, -14, D:1)
  a +1 short sword of protection
(14, -13, D:1)
  a ball python skeleton
(15, -21, D:1)
  4 stones
(17, 5, D:1)
  3 stones
(18, -14, D:1)
  a +0 dagger
(18, 4, D:1)
  a +0 sling
(19, -16, D:1)
  a frilled lizard skeleton
(20, 7, D:1)
  a bat corpse (skeletalised by now)
(21, -21, D:1)
  a bat skeleton
(26, -12, D:1)
  a bat skeleton
(26, -11, D:1)
  a +0 dagger
  a goblin skeleton
(27, 7, D:1)
  a +0 hand axe
(28, 5, D:1)
  a +0 dagger
(30, -7, D:1)
  a +0 long sword
(39, 1, D:1)
  a ball python corpse (skeletalised by now)

Level 2 of the Dungeon
(0, 0, D:2)
  a +0 whip
(3, -27, D:2)
  a +0 ring mail
(4, -16, D:2)
  a +0 short sword
(8, -10, D:2)
  a bat corpse (skeletalised by now)
(12, -20, D:2)
  a frilled lizard corpse (skeletalised by now)
(12, -5, D:2)
  a +0 club
  a goblin corpse (skeletalised by now)
(18, 0, D:2)
  a hobgoblin corpse (skeletalised by now)
(20, -5, D:2)
  a +0 sling
(21, 0, D:2)
  a quokka corpse (skeletalised by now)
(24, -24, D:2)
  a +0 club
(25, -5, D:2)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(32, -25, D:2)
  a +0 ring mail

Level 3 of the Dungeon
(0, 0, D:3)
  a scroll of teleportation
(12, -5, D:3)
  an orb of light
(13, 6, D:3)
  a +0 rapier
(14, -4, D:3)
  a +0 mace
(14, 2, D:3)
  a +0 dagger
  an orc corpse
(15, -5, D:3)
  a +0 short sword
  3 stones
(17, 1, D:3)
  3 stones
(19, 3, D:3)
  a +0 club
  a +0 club
  a goblin corpse
(21, -5, D:3)
  5 stones
(21, -4, D:3)
  a +0 whip
(21, 2, D:3)
  a +0 dagger
(23, -8, D:3)
  a +0 robe
(24, -3, D:3)
  a +0 club
  a kobold corpse
(27, 2, D:3)
  a +0 whip
(27, 23, D:3)
  a +0 robe
(28, -2, D:3)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(31, -17, D:3)
  a quokka corpse (skeletalised by now)
(32, -17, D:3)
  a +0 chain mail