In the rockpile, what happens to richard at the river

It all started last Tuesday. Richard decided that he wanted to go fishing. He could because he had that day off. so he drove a good 2 hours to get to the river there he chooses his favorite spot to fish. He always know where to find it because there is a huge rock pile by it. he sits down and settles in. he baits the line then casts out. After a few nibbles he can feel himself dosing off. All of a sudden he hears an ear curling crash, then all is dark. After who knows how long Richard wakes up disorientated by where he was what happened. He soon discovered he is covered by the rocks. He tries to shout for help but the pressure is too much on his body. 3 days later after searching for Richard the police finally uncover his body. He had passed away. The moral of the story is never trust anyone.