The very last thing you heard was an ear-ringing gunshot before you were eventually picked up and tossed in the back of a pickup truck.
The man in the clown face mask who had shot you forgot to check from your pulse and heartbeat, so he was unaware you were still, unfortunately, living.
Your life was hanging by a thread, honestly, but at least you were with the rest of your friends...who may or may not have been dead..
After a few minutes, the car started and began driving off to a location that was unfamiliar to you..
When the killer parked the car in his garage and turned it off, he hopped out of the driver's seat and started dragging each of your friend's corpses into the house, placing them in an area you weren't completely sure of..
You could probably hop out of the back of the pickup truck while he was busy dragging your friend's bodies inside...but you didn't know if your body could withstand all the movement after a gunshot wound to the side...