I'm not a 4Chan user myself, but I know some more than A dozen stories about 4Chan, few-some of which are morbid, dark, and tragic.
But I found A story on 4chan in which imma not read but imma explain what happened in the story.
A Guy was doing his own thing in the woods until he encountered a dead deer (doe) with only It's neck being the only thing that stained blood on. The neck of the deer was gone, literally gone with no flesh on, only the spine was left intact. He took an image of it on his post, but imma not show it here for reasons. he observed and checked on the dead deer and found out that It's body was still warm and fresh, indicating that it was killed very recently. There were also no broken bones, meaning that it wasn't injured. was scared since the predator who killed the deer is still in his area somewhere. He tried to find predator tracks but no avail, this means that the predator was most likely pretty light. He then found a blood trail and followed the blood trail of the deer in which took him an hour to finish the track, but the track kept going, but on a frozen lake. He traveled 3 kilometers to finish the blood trail, which basically 3 kilometers is 3000 meters.
The story ends there but It's interesting but disturbing nonetheless kinda. There were theories as the predator could be a cryptid since no animal kills deer like that, or just something else.
So yeah, That's really it, answer and discuss :)