Sorry if this was brought up re: why leave the camera when she went and took other things. Does anyone know if that camera had a GPS on it? If she does have familiarity with cameras and for all intent and purpose she does (more than the average person by the information I know with this case) I wonder if she was concerned that with GPS on the camera, then it could be tracked. So, she did the next best thing, deleted the photos, threw it in the washing machine to destroy it. I think TA was excited by his new camera; maybe he told her (or she got to see that day) all the nifty features it had...
If that type of camera doesn't have GPS then forget that theory