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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Ceudy Gutierrez reads a book to her 2-year-old son, Matias, at their home in Buford, GA, on Tuesday, Nov. 18, 2025. Ceudy Gutierrez is struggling to make ends meet for herself and her three young kids following her husband’s ICE arrest earlier this fall. (Miguel Martinez/ AJC)

Credit: Miguel Martinez-Jimenez