Police: Man who fired shots in Houston airport terminal was intent on committing suicide

Airport security members divert traffic around the Marriott before getting to Terminal B at Bush Intercontinental Airport on Thursday, May 2, 2013 in Houston. Shots were fired near a ticket counter, critically injuring one armed man and sending people in the terminal scrambling and screaming, a Houston police spokesman and witnesses said. One person has been taken to an area hospital with life threatening injuries. It was not immediately clear who fired the shots. (AP Photo/Houston Chronicle, Karen Warren ) MANDATORY CREDIT (The Associated Press)

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Security at Bush Intercontinental Airport stand at the bottom of the escalators as police investigate a shooting near Terminal B on Thursday, May 2, 2013 in Houston. Shots were fired near a ticket counter, critically injuring one armed man and sending people in the terminal scrambling and screaming, a Houston police spokesman and witnesses said. One person has been taken to an area hospital with life threatening injuries. It was not immediately clear who fired the shots. (AP Photo/Houston Chronicle, Cody Duty) MANDATORY CREDIT (The Associated Press)

An EMS ambulance pulls out of of Terminal B at Bush Intercontinental Airport on Thursday, May 2, 2013 in Houston. Shots were fired near a ticket counter, critically injuring one armed man and sending people in the terminal scrambling and screaming, a Houston police spokesman and witnesses said. One person has been taken to an area hospital with life threatening injuries. It was not immediately clear who fired the shots. (AP Photo/Houston Chronicle, Karen Warren ) MANDATORY CREDIT (The Associated Press)

HOUSTON – Houston police say it appears a man was bent on suicide, or what's known as suicide by cop, when he opened fire inside a busy Houston airport terminal.

Investigators say 29-year-old Carnell Marcus Moore of Beaumont shot himself in the head with a 40-caliber pistol Thursday afternoon after shooting into the ceiling at a Bush Intercontinental Airport terminal. A homeland security agent in the terminal also shot and wounded him when Moore refused to drop his weapon.

Authorities said Friday that Moore had an AR-15 rifle with ammunition in a bag he was carrying. From a suicide note he left behind, they believe he was not planning to hurt others. No one else was injured.

Moore had no criminal record. It's not immediately known where he obtained his weapons.