Over 30 years of retirement, O'Brien would collect as much as $99,388, according to a projection by Local Government Information Services (LGIS), which publishes Kane County Reporter.
The projection assumes O'Brien received $2,089 in the first year of retirement, then 3 percent annual increases thereafter, compounded.
After 3 years of retirement, O'Brien will have already received $6,458 in retirement benefits, or more than the sum total of the retiree's contributions to the state pension fund.