Killer ‘knew Mary could not fight back’

THE “devil” who murdered Irishwoman Mary Griffiths with a bolt gun in front of her children knew she was defenceless from an injury when he attacked her, her sister has said.

John McFarlane was sentenced to life with a minimum term of 20 years at London’s Old Bailey last Friday.

Ms Griffiths’ sister Louise Scannell told the Today with Pat Kenny show on RTÉ that 40-year-old McFarlane became friends and study-mates with her 38-year-old sister when they both trained to be fitness instructors.