A shooting that killed a man and wounded three other riders Thursday on an Atlanta public transit train appears to be a "targeted, isolated incident," officials say. Metropolitan Atlanta Rapid Transit Authority Police Chief Wanda Dunham said in a statement late Thursday that officers arrested a suspect in the death of Zachariah Hunnicutt at the West Lake station, the AP reports. Dunham didn't release the suspect's name or details about what led to the shooting at around 4:30pm. A MARTA spokesman says one man died at the scene. Two men and a woman who were wounded by gunfire were taken to Grady Memorial Hospital.
Cedric Peterson tells WGCL he regularly rides the train after work and that the ride started off normally. "Everybody's sitting down. It's quiet," he says. "After we pulled off, we heard a sound like a crash, like we ran into maybe a tree limb that was on the track. Then like three seconds later, I'm hearing pop, pop, pop. I look back and see a guy's back and see his outstretched arm. I'm like, 'Yo, man, this is a shooter.' Then I'm running for the door." The shooter got on the train just like anyone else, Peterson says: "He was wearing headphones and just bobbing his head. There was no argument or anything. Then I heard the first pop."