Pretty sure this is a body-dumping date and not a hiking date. (I'm using the term "date" ...

Actually, it's most likely where he dumped his father's body, but he was non-specific as to if his mom was also there. All we know is that he was referring to his father as being the police tape. I highly doubt that his mother was also there, because he had a great deal of respect for his mom.

I'm assuming he only killed her because she happened to be a witness of his father's death, and then he had to kill her.? (Don't quote me on that, just an assumption)

I think he might have buried his mom there too. The apple seemed like symbolism for his mother and Sangwoo placed an apple on the ground. I also wonder if Sangwoo did respect his father in a way because he got so mad at Bum for stepping on the tape.

True, you have a point. Although, I still think that he bears little to no respect for his father, because he did abuse him in the past, which probably drove him to killing him in the first place. The apple being placed on the ground could have been symbolism for him and his mother being together, but not literally. In other words, they were in is loving relationship but were not buried in the same place. Plus, if they had been buried together, don't you think he would have said 'parents' instead of 'father'?

Oh shit I'm watching Criminal Minds while reading this. HAHA and you'r right.

I think there's more to it than the abuse that drove him to kill his father, but that's only a guess. Sangwoo tied the police rape around the tree but walked away to place down the apple. It's possible they weren't buried in the exact same location but a small distance apart. Maybe he used the police rape as a marker for his dad but something else for his mom.

lol police rape
tape****

Ah! Typos! I hate my phone (〜￣△￣)〜