A BRISTOL VIRGINIA WOMAN WHO PLED GUILTY TO DROWNING HER SON IN A BATHTUB JUST OVER TWO YEARS AGO WILL MAKE AN APPEARANCE ON THE OPRAH WINFREY SHOW. ANDREWA PETROSKY PLED GUILTY TO FIRST DEGREE MURDER IN OCTOBER 2006. SHE KEPT HER SIX YEAR OLD SON GARRETT HOME FROM SCHOOL, CHOKED HIM UNTIL HE PASSED OUT AND THEN PLACED HIM UNDERWATER IN A BATHTUB AT THEIR OVERHILL DRIVE HOME. PETROSKY THEN CALLED 911 AND TOLD THE DISPATCHER SHE HAD JUST KILLER HER SON. THE BOY DIED JUST DAYS LATER AT A LOCAL HOSPITAL. SHE WAS SENTENCED TO 42 YEARS IN PRISON WITHOUT PAROLE. TODAY, SHE WILL BE INTERVIEWED FROM PRISON BY OPRAH. THIS MARKS THE FIRST PUBLIC INTERVIEW PETROSKY HAS GIVEN SINCE THE DEATH OF HER SON.