By Hannah Roberts Last updated at 9:45 AM on 31st October 2011 Ruth Madoff has said that she blames herself for her son Mark's suicide. Mark Madoff hanged himself with a dog leash on the second anniversary of his father Bernie Madoff's arrest for running the biggest financial fraud in history. He had wanted his mother to cut off all contact with his father. Speaking for the first time since her disgraced financier husband's sensational arrest three years ago, Ruth Madoff now says she wishes she had severed ties with her husband as Mark wanted. Guilt: Ruth Madoff has said that she blames herself for her son Marks' suicide.
@highlight
Mark Madoff hanged himself on second anniversary of father's arrest for biggest Ponzi scheme fraud in history
@highlight
Mother Ruth says she blames herself and wishes she had cut off contact with her husband as Mark wanted
@highlight
Ruth didn't even know what a Ponzi scheme was when Bernie confessed, son Andrew claims
@highlight
Andrew says Bernie Madoff's use of his sons' legitimate trading business to shield his fraudulent scheme was 'unforgivable'
can't explain it, I mean I trusted him,' @placeholder said when asked