They do try to do their best at figuring out how the things happened, but a lot of the time their conclusions are outlandish or they don't give one at all. In particular, the one with the pack of dogs pulling apart the car - their conclusion was that the dogs were holding a grudge. Really!? My own dog pulled the grill off my own car in my own driveway. Grudge? I don't think so. Squirrel that he chased under the car? Definitely. They never showed the first part of the video. Most likely a varmot or cat ran under the car and up into the engine while trying to get away from the dogs.