This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated.CHICAGO — An off-duty Cook County sheriff’s deputy was killed in a crash Monday on the Far Southwest Side. Nick Theofanopoulos, 39, was on his way to work when a Jeep slammed into his Nissan Altima near 103rd Street and Kedzie Avenue about 9 p.m. Monday, police said. Theofanopoulos was en route to a work assignment at Advocate Christ Medical Center, where he was expected to guard an inmate. Instead, Theofanopoulos was rushed to the same hospital by paramedics; he was later pronounced dead. Theofanopoulos had been with the sheriff’s office for 15 years. An honor procession escorted his body to the Cook County Medical Examiner’s Office about 3:30 a.m. Tuesday. Julia Moore is the owner of South Side Shrimp in Mt. Greenwood, an area many first responders call home. If given the chance to speak to the Theofanopoulos family, she said, “I’d offer my condolences, thank him for his service, tell them they are in my prayers.” The 21-year-old driver who caused the fatal crash was also taken to Advocate Christ Medical Center, where her condition had stabilized. Police are investigating. Earlier this month, state Trooper Christopher Lambert was killed while responding to a three-car crash on I-294 in Northbrook. The 34-year-old U.S. Army veteran was struck by a car after he exited his vehicle.