whodunnit

Level 1 of the Dungeon
(0, 0, D:1)
  a bat corpse (skeletalised by now)
(1, -39, D:1)
  a frilled lizard skeleton
(4, -8, D:1)
  a quokka corpse (skeletalised by now)
(11, -23, D:1)
  a rat skeleton
(12, -22, D:1)
  a +0 dagger
(12, -20, D:1)
  a rat skeleton
(14, -21, D:1)
  a +0 dagger
  a goblin skeleton
(15, -14, D:1)
  a frilled lizard skeleton
(15, -3, D:1)
  a +0 robe
(17, -31, D:1)
  a +4 dagger
  a kobold corpse (skeletalised by now)
(23, 6, D:1)
  a +0 club
(31, -42, D:1)
  a +0 dagger
(31, -16, D:1)
  a +0 club
(33, 7, D:1)
  a +0 ring mail
(36, -31, D:1)
  a +0 dagger
(52, -12, D:1)
  a +0 chain mail

Level 2 of the Dungeon
(5, -18, D:2)
  a rat skeleton
(6, -29, D:2)
  a parchment of Slow
(6, -19, D:2)
  a bat skeleton
(9, -4, D:2)
  a +0 leather armour
(11, -18, D:2)
  a +0 dagger
(15, 18, D:2)
  a staff of conjuration
(20, -4, D:2)
  a +0 dagger
(25, 0, D:2)
  a rat skeleton
(49, 9, D:2)
  a +0 short sword
(52, -4, D:2)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(52, 17, D:2)
  a hobgoblin corpse (skeletalised by now)
(56, 22, D:2)
  a frilled lizard corpse (skeletalised by now)

Level 3 of the Dungeon
(0, 0, D:3)
  a +0 hand axe
(7, -24, D:3)
  a +0 club
  a +0 sling
  a goblin corpse (skeletalised by now)
(15, -34, D:3)
  a hobgoblin corpse (skeletalised by now)
(17, -14, D:3)
  a +0 dagger
  a goblin corpse (skeletalised by now)
(23, 1, D:3)
  a +0 dagger
  a quokka skeleton
(24, 0, D:3)
  a +0 club
  a +0 dagger
  a goblin skeleton
(31, -34, D:3)
  a bat corpse (skeletalised by now)
(33, -12, D:3)
  a +2 spear (still there?)
  a +0 robe (still there?)
(36, -16, D:3)
  a bat skeleton
(38, -3, D:3)
  a hobgoblin corpse
(43, -34, D:3)
  a +0 flail
  a +0 leather armour
(45, -2, D:3)
  a ball python corpse

Level 4 of the Dungeon
(0, 0, D:4)
  a +0 helmet of intelligence
(13, -19, D:4)
  a giant cockroach corpse

Level 5 of the Dungeon
(0, 0, D:5)
  a parchment of Shock
(12, 19, D:5)
  a +0 scale mail