How sick killer murdered wife, told kids she’d walked out then convinced son to dig her up in evil plot to evade justice

ANDREW Griggs had been expecting the knock on the door for more than 20 years. 

When it finally came, he showed no surprise as detectives arrested him for the 1999 murder of his wife Debbie, 34. 

Wife killer Andrew Griggs, after being arrested by copsPA SWNS:South West News ServiceTragic Debbie Griggs pictured on her 21st birthday[/caption] suppliedGriggs was married to Debbie for nine years before murdering her[/caption]

By then, the former fisherman had a new life...