At 68% of the game, I heard Charlie's cries for help. Then I ran down to the lake shore, and Bogeyman came out from the lake to attack me. I hit him several times with my axe, but at the end he killed me. I tried for 3 times but he killed me every time. How can I kill him?
Well, this is how I did it:
I hit him a few times. When he crouched down, I came close to him, and grabbed his sledge hammer (by pressing A on Xbox 360). Then Murphy automatically killed him within the cut scene.