WICHITA FALLS, Texas (KXAN, KFDX/KJTL) — The suspect who shot a Clay County Sheriff’s Deputy outside of a truck stop and fled the scene Monday night is in custody.

Joshua Lee Green from Arlington was arrested and is charged with aggravated assault of a peace officer, according to Clay County Sheriff Jeff Lyde. Lyde made the announcement Wednesday morning on Facebook.

Police found the car they believe the suspect was in Tuesday, a white 4-door Cadillac STS with stolen plates, but the suspect was not in it.

The sheriff’s office says Deputy Breanton Chitwood attempted to pull the man over around 7:30 p.m. for speeding Monday at the Jolly Truck Stop. When Chitwood walked up, he was shot and returned fire, the sheriff’s office said. Chitwood was shot in his bulletproof vest and is expected to be okay.

The shooting prompted authorities to issue a Blue Alert. The alert was sent late Monday night, but with almost no information relevant to the case. The Texas Department of Emergency Management said Wednesday it’s working to figure out why more information didn’t go out with the alert.

What is a Blue Alert?

The Blue Alert program is used to alert the public about people who are accused of killing or seriously injuring police officers or other members of law enforcement, in an effort to apprehend the suspect as soon as possible, according to Texas DPS.

Former Texas Gov. Rick Perry signed an executive order in 2009 to start the program, which includes emergency messages sent to cell phones and other devices with relevant information about the suspect designed to facilitate tips and leads.

The criteria DPS uses to issue the alerts are:

  • A law enforcement officer must have been killed or seriously injured by an offender
  • The investigating law enforcement agency must determine that the offender poses a serious risk or threat to the public and other law enforcement personnel
  • A detailed description of the offender’s vehicle, vehicle tag, or partial tag must be available for broadcast to the public
  • The investigating law enforcement agency of jurisdiction must recommend activation of the Blue Alert to the Texas DPS

Texas DPS originally sent the alert regarding Wood at 10:18 p.m. to cell phones, the @TX_Alerts Twitter account and email. To subscribe to alert emails, go to the DPS’ site and sign up.

A spokesperson for the Texas Division of Emergency Management tells KXAN the Texas State Operations Center is currently working with system support specialists to determine why all of the information entered into the alert system was not transmitted publicly Monday night.

Emergency alerts can be toggled on and off in your cell phone settings.