Defense attorneys are preparing "the defense of insanity at the time of the alleged offenses," according to court filings.

ATLANTA — The man accused of traveling to Hartsfield-Jackson Atlanta International Airport intending to commit a mass shooting pleaded not guilty in federal court on Friday. The suspect, Billy Joe ...

Along with the weapons, cops also found a notebook with handwritten notes detailing the plot to shoot up his former school ...

Police arrested Luqmaan Khan after finding guns, ammunition, and a notebook with maps and martyrdom notes suggesting plans ...