By Daily Mail Reporter PUBLISHED: 16:24 EST, 3 August 2012 | UPDATED: 16:46 EST, 3 August 2012 Drew Peterson's ex-wife told her sister that she believed he would kill her, then begged her sister to take care of her two sons, just six weeks before her death, the sister testified on Friday. Anna Doman provided the trial's first testimony including what prosecutors have called 'from the grave' statements -- comments Peterson's ex-wife Kathleen Savio allegedly made to others about him threatening to kill her well before her body was found in her bathtub. Peterson is charged with first-degree murder in the 2004 drowning death of Savio, his third wife. He was charged in Savio's death after his fourth wife, Stacy Peterson, went missing in 2007.
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Former cop was charged in 2004 death of third wife Kathleen Savio, after his fourth wife, Stacy Peterson, went missing in 2007
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Anna Doman told court about 'statements from the grave'
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Acknowledged it took her three years to tell police
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