CULTURE OF CORRUPTION: Olga Roche, the disgraced former child welfare chief ousted in April amid a firestorm of criticism, quietly retired as a state employee last Friday — right after she turned 60 — scoring a potentially hefty pension bump in the process, the Herald has learned. “Roche came under fire when a 5-year-old Fitchburg boy, Jeremiah Oliver, went missing for months while under the Department of Children and Families’ watch, before he was found dead, the first of several high-profile deaths of children under state care.”