I participate in CG camps. I was curious before this happened as to the behind the scenes info. Trainers are required to be at each workout at least 30 minutes before the camp begins. They are also required to set up a tall flag at the location (usually the driveway entrance). The flag has to be put together with poles since it's too tall to transport as is. They also have to set up a table with a tablecloth, iPad for checking in, forms for potential new members, name tags, products for purchase, etc. Then, the trainers set up any equipment (weights, medicine balls, cones, whiteboard with list of exercises, music, etc.). Most of the camps (don't know of any that don't follow this but there may be some) are outside, usually at a location that has a pavilion in case of rain. When it rains, we work out under the pavilion. I'm not sure why MB chose an interior location (maybe due to heavier rain, fear of something, class size or just had a good connection w/ people at the church). I've been to classes that had over 30 people, but the few rainy days I've been (it's rained a lot lately and I usually skip on rainy days) the class size was quite small. I attend a 5am class and I'm often there anywhere b/w 20 and 5 minutes early. I've often worried about the safety of the trainers when they setup, especially for the early AM classes. Since MB's murder, some campers in my group that arrive at 4:30 just out of concern for the trainers. I don't know if MB posted the room she would be in, but if so I wonder if the murderer was looking for the location, camera room or if they were finding a hiding spot. I'd like to have a map of which camera viewed which portion of the video. Her body was found in a room. I don't know if it was the room she was planning to train in, but I wonder if she heard a familiar voice and walked into the room or if she just walked in to set up and the killer was hiding. Such a sad situation. I hope CG creates some safer guidelines for trainers. Hope that helps.