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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Yemaya Lyles (right) wipes away tears during a news conference in front of the Rockdale County Public Schools administration building on Tuesday, Dec. 19, 2023. Lyles' son, Antonio, was assaulted by a paraprofessional, who has since been fired and charged with battery. Lyles says her case against the school district has dragged on since then. (Miguel Martinez/AJC 2023)

Credit: Miguel Martinez