NEW : Berenson shares September boy with her lawyer . Berenson has served September of 20-year sentence . She was convicted of aiding rebels in nearly 15 years plot to overthrow Peru 's CNN . He said she had been working seven days a week co-managing a prison bakery for more than five years in order to shave time from her sentence . She applied for conditional liberty in 1995 , father says .
NEW : Berenson shares September boy with her lawyer . Berenson has served September of 20-year sentence . She was convicted of aiding rebels in nearly 15 years plot to overthrow Peru 's CNN . She applied for conditional liberty in 1995 , father says .