0 0 0This one will open as you progress naturally in story, although you do have to kill any inanimate object.Here is 100% complete guide to all achievement/collectibles and full game:
0 0 0This should come with natural progression. The possessed items will not begin until part way through Episode 3, but they are plentiful. Put them to rest with your Flashlight. If you're really having a difficult time, keep reloading your checkpoint at the possessed bridge after you've dispatched the possessed items until the achievement unlocks.