I have a friend who had a couple stolen 2 years ago. He heard through the rumor mill who it was but the cops couldn't prove it. This year he had 5 out and someone stole the memory card for 4 of them. There is a version that will send the pics via wireless to a receiver located hidden in another place. In your case my bet is someone was trespassing and saw they were on the game camera and broke it off the tree just to avaid being caught. Low lifes to be sure. Good luck and I hope you catch them.