CNN Video(CNN) - The West Texas man who killed seven people and wounded 25 in a shooting rampage bought his gun in a private sale, which doesn't require a background check, a law enforcement official told CNN.
Police have described the firearm Seth Ator, 36, used in Saturday's killing spree in and around Odessa, Texas, as an AR-15-style rifle.
Ator tried to buy a firearm on January 14, 2014, but wasn't allowed to, the Texas Department of Public Safety told CNN in an email.
The shooting began Saturday when Texas Department of Public Safety troopers pulled Ator over for failing to use his turn signal, and Ator began firing at them.
Speeding away, he went on to spray bullets as he drove west toward Odessa and into the city.