Downers Grove Man Charged with DUI in Fatal Oak Brook Crash

The driver in a fatal one-car crash in Oak Brook on Sunday has been arrested and charged with aggravated driving under the influence of alcohol.

At 12:04 a.m. Sunday, Sept. 22, Oak Brook police and fire departments responded to the area of Spring Road and Salt Creek Circle for a report of an accident with injuries. 

It is alleged that Decero was traveling southbound when he lost control of the vehicle, swerved off the road and crashed into a wooded area, Berlin said.

Decero's passenger, 48-year-old Thomas Fitzsimons of Hinsdale, was pronounced dead at the scene. Decero was transported to a local hospital and treated for his injuries.

An investigation into the crash revealed that Decero's blood alcohol content was above the legal limit of .08, Berlin said.

Decero was released Monday afternoon and immediately taken into custody. He was charged with one count of aggravated DUI involving death, a Class 2 felony.

“Once again we see the tragic consequences of an alleged drunk driver,” Berlin said. “Drunk driving crashes are 100 percent avoidable. The next time you or someone you know is considering getting behind the wheel of their car after they have been drinking, search the Internet for images of the consequences of drunk driving and ask yourself ‘is this how I want to end the evening or possibly my life?’" 

Decero's next court date is scheduled for Sept. 26.

According to The Doings, Fitzsimons was a shareholder with Greer Burns and Crain law firm in Chicago and worked in intellectual property law. He was married with two children in elementary school.

"Our condolences go out to Mr. Fitzsimons’ family and friends who are now grieving their loss," Berlin said.