Columbia High School lockdown

Metro Atlanta

Columbia High School in DeKalb County was under lockdown Wednesday.

DeKalb County Public Information Officer Mekka Parrish (center with back to camera) gets briefed by DeKalb County police before speaking to the media.

DeKalb County police walk by the Columbia High School sign after a 17-year-old sophomore was detained for questioning.

DeKalb County Public Information Officer Mekka Parrish talks to members of the media after police detained a 17-year-old Columbia High student once believed to have carried a gun onto campus fled the school today.

Columbia High School Assistant Principal Dr. Jerry Petrus, left, talks with some local residents after DeKalb County police detained a 17-year-old sophomore student. The student turned himself in a mile away from campus after his mother talked him into giving up.

DeKalb County police walk to their vehicles as they leave Columbia High School. A student once believed to have brought a gun to school was detained about a mile away after fleeing the campus.

Columbia High School Assistant Principal Dr. Jerry Petrus, right, walks with five Columbia High School students who were questioned after a 17-year-old sophomore student was detained at Columbia High School Wednesday afternoon in DeKalb County. The students were questioned because they were in touch with the 17-year-old student via text messages today.

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DeKalb County Public Information Officer Mekka Parrish (center with back to camera) gets briefed by DeKalb County police before speaking to the media.

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