21-year-old gunman disguised himself as student

AZTEC, N.M. (AP) — Authorities say the 21-year-old gunman who killed two students at a New Mexico high school disguised himself as a student to gain access to the school.
San Juan County Sheriff Ken Christesen on Friday shared a message the gunman had written before the shooting on Thursday morning. It included a timeline of what the gunman had planned.
Christesen called the shooting at Aztec High School a cowardly act and that the shooter was determined to create as much ca