I should have mentioned that the most probably explanation for Joan’s wandering around after the incident which caused the blood loss is shock and/or head trauma. After serious head trauma, victims can wander around in a sort of fugue state. I remember a case where a man who had been shot in the head while sleeping was found in his kitchen downstairs making a sandwich, completely oblivious to the fact that his head looked like a nightmare come true. You acknowledge the stranger’s fingerprints found at the crime scene. Someone else was there with her. The witness accounts reference bleeding down her legs and the one crime scene photo really corroborates that if you look at the blood pool where she probably slid down the wall in despair after someone yanked the phone out when she tried to make a call. It appears she sat there bleeding a bit. Then later she probably lay down with her head propped on that other item on the floor. But this doesn’t preclude her also having head trauma or the blood loss (which probably continued after she left the house and took off walk) could have cause shock and confusion later. Maybe the bleeding later spontaneously resolved or maybe she sought treatment in a way that law enforcement missed (outside the area or with a helpful individual). Or maybe she stumbled into some out of the way place and perished there and by chance of fate was never found. I don’t know. I just think much of what I’m describing above is borne out by the evidence that we do have.