The Blood of the Winstons

The blood found at the house was type o, but both of the winstons had type a. First responders initially thought it was willie's dialisis equipment malfunctioning,. And nobody else was reportedy in the house that night. There was no clear source for where the blood was come ming from and there was no explanation for how it had appeared. After a month and a half had passed since the incident, police still had no clue where the blood came from.