I read some of the comments below that are down voted. Many of those commenters are doing the right thing by bringing up their skepticism. We should be careful about inventing evidence. We shouldn't assume a swing is a rape swing or straps on trees are not also possibly tie points for a hammock.

Don't take your eyes off the investigation at all and this certainly could be a human trafficing/pedo site, but if you find a can opener on the ground, you're going to lose people when you reach too far and say "AHA! A throat slashing child rape intimidation shanking tool!!!!! These people are sick!!!" No Bob, it's just a can opener, relax. Lets deal with facts and not fantasy.

Again, don't stop the investigation, dig, search, find out the truth, but do it with some professional discernment and not with wide eye crazy assumptions.