In discord with its own rules, the AP refers to an 18yo mass-shooting suspect as a “teenager,” then follows up with a different tweet describing a “a white gunman in military gear.”
The AP’s own rules say an 18yo is an adult, not a teen. In a light-hearted story about a high school event where some are 17 and some are 18, you could get away with calling them all “teenagers,” but in a serious story, it’s crucial to be consistent. This suspect is a white man. Shortly after the “teenager” tweet, the AP released another tweet referring to “a white gunman…