After a character dies, his corpse will be left right in where he dies and items in his backpack may drop randomly (No item drops when you choose Revive at Current Scene). Dropped items will be left on his corpse, which can be seen and picked up by all players.

After a character dies, the location of his corpse will be shown on the map as below:

After a monster dies, its corpse will be left right in where it dies, and the location of its corpse will be shown on the minimap. You can check its corpse and get corresponding items.