You check under the blanket for anything other than grass and dirt to no avail.
Then you check the backpack.

Some kind of sawed off rifle, but you can't really recognize it. You were never a gun enthusiast, anyway. There are some bullet shells and a bit of gunpowder, but no bullets. There are also two candy bars and a thermos cup half filled with water. The water is at the same temperature that the air is at, though.
There's also a pill bottle with mysterious pink pills, and the label is mostly scratched off except a for handwritten addition - "Take once in mornings."
..Also, up close, you think you can see some mold growing on the blanket, but that might just be your imagination playing with the stains on it.