Knife was found embedded in retired teacher's neck
Betty Yates the retired teacher was found two days after her murder lying in her hallway with her head resting on a cushion.
The court heard she was found with a knife still embedded in her head after being stabbed four times and beaten with a walking stick.
A swab taken from the scene represented a "one-in-a-billion match" as a mixture of DNA belonging to the Yates and Farrow, the court heard


