An Atlanta rapper was killed Wednesday in a fiery crash on I-285 in south Fulton County, according to his official Twitter account. While the Fulton Medical Examiner’s office has not identified the victim in the crash, the rapper’s brother and a manager confirmed Carlos “Shawty Lo” Walker, known for the hit “Dey Know,” died in the accident on the I-285 southbound ramp to Cascade Road. Shawty Lo was also a member of the Atlanta rap group D4L, who scored a hit with “Laffy Taffy.”   My brother has passed he is no longer here but his spirit, his kind heart , and his music will live on Long live Shawty…