PHOTOS: Deadly shooting spree in Texas

Bullet holes are seen in a car window near an Olive Garden following a shooting in Odessa, Texas, Sept. 1, 2019. (Photo: Callaghan O'Hare/Reuters)

Authorities said Sunday they still could not explain why a man with an AR-style weapon opened fire during a routine traffic stop in West Texas to begin a terrifying, 10-mile (16-kilometer) rampage that killed seven people, injured 22 others and ended with officers gunning him down outside a movie theater.

Authorities identified the shooter as Seth Aaron Ator, 36, of Odessa. Online court records show Ator was arrested in 2001 for a misdemeanor offense that would not have prevented him from legally purchasing firearms in Texas, although authorities have not said where Ator got his weapon.

Ator acted alone and federal investigators believe the shooter had no ties to any domestic or international terrorism group, FBI special agent Christopher Combs said. Authorities said those killed were between the ages of 15 and 57 years old but did not immediately provide a list of names. The injured included three law enforcement officers, as well as a 17-month-old girl who sustained injuries to her face and chest.

Odessa Police Chief Michael Gerke refused to say the name of the shooter during a televised news conference, saying he wouldn't give him notoriety, but police later posted his name on Facebook. A similar approach has been taken in some other recent mass shootings. (AP)

Law enforcement officials process the crime scene Sept. 1, 2019, in Odessa, Texas, from Saturday's shooting which ended with the alleged shooter being shot dead by police in a stolen mail van, right. (AP Photo/Sue Ogrocki)
Police cars and tape block off a crime scene nearby to where a gunman was shot and killed at Cinergy Odessa movie theater after multiple people were shot on August 31, 2019 in Odessa, Texas. (Photo: Cengiz Yar/Getty Images)
Odessa Police Chief Michael Gerke announces that he does not want to speak the name of the shooter from Saturday's shooting during a news conference, Sept. 1, 2019, in Odessa, Texas. (AP Photo/Sue Ogrocki)
Police tape marks the scene outside a Twin Peaks restaurant after multiple people were shot on August 31, 2019 in Odessa, Texas. (Photo: Cengiz Yar/Getty Images)
A vehicle with a broken window is seen as Texas state troopers and other emergency personnel monitor the scene at a local car dealership following a shooting in Odessa, Texas, Sept. 1, 2019. (Photo: Callaghan O'Hare/Reuters)
Flowers are seen as Texas state troopers and other emergency personnel monitor the scene at a local car dealership following a shooting in Odessa, Texas, Sept. 1, 2019. (Photo: Callaghan O'Hare/Reuters)
FBI agents search a home believed to be linked to a suspect following a deadly shooting spree on September 1, 2019 in West Odessa, Texas. (Photo: Cengiz Yar/Getty Images)
Police tape and evidences are seen as Texas state troopers and other emergency personnel monitor the scene at a local car dealership following a shooting in Odessa, Texas, U.S. September 1, 2019. REUTERS/Callaghan O'Hare
A police vehicle is seen at Cinergy movie theatre following a shooting in Odessa, Texas, Sept. 1, 2019. (Photo: Callaghan O'Hare/Reuters)
A Texas state trooper and other emergency personnel monitor the scene at a local car dealership following a shooting in Odessa, Texas, Sept. 1, 2019. (Photo: Callaghan O'Hare/Reuters)
Police vehicles sit outside of Cinergy movie theatre after a man went on a shooting spree in Odessa, Texas, Sept. 1, 2019. (Photo: Callaghan O'Hare/Reuters)

_____

Download the Yahoo News app to customize your experience.

Read more from Yahoo News: