A Powder Springs man has died three weeks after he was seriously injured in a crash in Austell, authorities said.

Kahlil Harper, 30, died Sunday at Wellstar Kennestone Hospital, where he was taken after the Dec. 10 early-morning crash on C.H. James Parkway, according to Cobb County police spokeswoman Shenise Barner.

Investigators said Harper was turning left onto Humphries Hill Road about 4:10 a.m. when his 2006 Infiniti G35 was struck by a 2017 Toyota RAV-4 driven by a 64-year-old Dallas man. Harper was taken to Kennestone with life-threatening injuries.

No charges have been filed against the driver of the Toyota. He was taken to Wellstar Cobb Hospital with injuries that were not life-threatening.

The investigation is ongoing. Anyone with information is asked to contact Cobb police at 770-499-3987.

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The city of Brookhaven's mayor and City Council last week decided to remove the colored panes of glass from the dome of Brookhaven's new City Centre after residents objected to the brightness of the colors, seen here Friday, June 27, 2025. (Reed Williams/AJC)

Credit: Reed Williams/AJC

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The city of Brookhaven's mayor and City Council last week decided to remove the colored panes of glass from the dome of Brookhaven's new City Centre after residents objected to the brightness of the colors, seen here Friday, June 27, 2025. (Reed Williams/AJC)

Credit: Reed Williams/AJC