465 Nia's Vacation (May 1st Extra)_2

Since all four students had died and there were no other people around, no one knew what the murderer looked like. From the condition of the bodies, it was known that the murderer had used a large machete, and there were no marks from any other weapons.

After investigating the scene, the local police found the footprints of the murderer when he left and tracked them for a distance, but then the murderer's footprints and other traces disappeared, so the case had always remained unsolved.

The second case occurred in the Big Bend National Park in Texas, a well-known tourist spot you might have heard of. Inside one of the caves there, several skeletons were found, all shot dead, and dozens of bullet holes were found in the walls of the cave, as if a massive shootout had taken place inside.