Chattanooga Gunman Mohammod Youssuf Abdulazeez: ‘Life Is Short and Bitter’

He played whiffle ball in a suburban neighborhood of swim meets and gently sloping lawns. He was a young man who was polite, who sometimes drove too fast, who was arrested on a drunken-driving charge. He was a hardened mixed-martial arts fighter who kept a blog where he mused about submitting to Allah.

And on Thursday, the authorities say that Mohammod Youssuf Abdulazeez, 24, killed four Marines and wounded at least three other people. He himself died in what the United States attorney here called a potential act of “domestic terrorism.”