A man died early Sunday morning when his speeding silver Infiniti crashed through a retaining wall on I-285 in Cobb County.

Cobb County police report the 2003 Infiniti G35 sped southward along South Cobb Drive around 2:30 a.m. before leaving the roadway, dropping into a ravine and up onto I-285 westbound. The car then plowed through the retaining wall before stopping in the eastbound 285 lanes.

The driver, identified as 51-year-old Walter Alan Mitchell of Atlanta, died at the scene.

The wreck closed the interstate before dawn, but all lanes had reopened by 6 a.m.

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Travelers walk around the baggage claim in the South Terminal at Hartsfield-Jackson Atlanta International Airport on Thursday, Nov. 6, 2025. Atlanta is among the airports where the FAA will reduce flights due to the shutdown, and airports are facing a shortage of air traffic controllers. 
(Miguel Martinez/ AJC)

Credit: Miguel Martinez-Jimenez