Only at Night!
There is an abandoned Car at this location. It does not always show up but be wary of it when it does. If approached blindly, you will be ambushed by a man hiding behind the car with a stun gun. He will leave the character on the railroad tracks in only their underwear. What happened should be obvious.
If you want to stop this from happening all together, run this Random Event as Trevor. As you approach the car, activate his Rage. He will shrug off the incoming blow and can then return fire on his attacker. Just blast him away and be done with it.