Another Monday Morning

You decide to hide under the bed. You hear footsteps come right in front of your bedroom window. As the doorknob starts to turn, you hear the word "FREEZE!" shouted loudly and firmly. The cops have caught up to this guy...

Gunfire is exchanged, and you hear a moan. Then you hear no more sounds...

Could the cop have killed the robber?

Or did the robber kill the cop and flee?

Perhaps they killed each other?