Prison officer smuggled coke into maximum security jail after befriending killer

Prison officer Heather McKenzie is now facing jail time (Picture: Facebook)A prison officer who smuggled cocaine into a maximum-security jail after developing a ‘close relationship’ with a killer inmate is now facing time behind bars.  Heather McKenzie, 31, was working as an operations officer at HMP Shotts in Lanarkshire, Scotland, when she teamed up with convicted murderer Zak Malavin, 30.   An investigation was launched after officials noticed a ‘notable&