El Paso police looking to identify 'hero' who saved lives, including a baby, at Walmart massacre

PHOTO: El Paso police are looking for this man who they say saved lives in the Walmart shooting.PlayEl Paso Police Department
WATCH El Paso police hopes to ID 'hero' after massacre

El Paso police are looking to identify a man they say heroically saved lives, including a baby, during this month's Walmart massacre.

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The city's police department posted a grainy surveillance image of the unknown man on its Facebook page Thursday.

"We believe this HERO helped save several lives including an infant," it read.

"Crimes Against Persons is requesting the community’s help in identifying the person in the picture," police said. "His actions at Wal-Mart were critical and lifesaving, he needs to be identified and interviewed by investigators."

Police ask anyone with information about his identity to call 915-212-4040.

PHOTO: Police stand at attention during a shooting at a Walmart in El Paso, Texas, Aug. 3, 2019. Ivan Pierre Aguirre/epa-efe/rex/Ivan Pierre Aguirre/EPA-EFE/REX
Police stand at attention during a shooting at a Walmart in El Paso, Texas, Aug. 3, 2019.
PHOTO: Law enforcement agencies cover the exits of a Wal-Mart where a shooting occurred near Cielo Vista Mall in El Paso, Texas, Aug. 3, 2019. Joel Angel Juarez/AFP/Getty Images
Law enforcement agencies cover the exits of a Wal-Mart where a shooting occurred near Cielo Vista Mall in El Paso, Texas, Aug. 3, 2019.

Twenty-two people were killed and dozens more were injured in the Aug. 3 shooting at a Walmart near the Mexican border.

The gunman allegedly cased the store to look for Mexicans to kill before he carried out the attack, according to law enforcement officials.

PHOTO: Police tape strung across an intersection behind the scene of a shooting at a shopping mall in El Paso, Texas, Aug. 3, 2019. Rudy Gutierrez/AP
Police tape strung across an intersection behind the scene of a shooting at a shopping mall in El Paso, Texas, Aug. 3, 2019.
PHOTO: Police keep watch outside Walmart near the scene of a mass shooting, Aug. 3, 2019, in El Paso, Texas. Mario Tama/Getty Images
Police keep watch outside Walmart near the scene of a mass shooting, Aug. 3, 2019, in El Paso, Texas.

Texas Gov. Greg Abbott said this week he's forming a domestic terrorism task force to "combat these hateful acts."

PHOTO: Edie Hallberg, center, speaks with police officers outside the Walmart store as shes looking for her missing mother Angie Englisbee, 87, who was in the store during the shooting in El Paso, Texas, Aug. 3, 2019. Andres Leighton/AP
Edie Hallberg, center, speaks with police officers outside the Walmart store as she's looking for her missing mother Angie Englisbee, 87, who was in the store during the shooting in El Paso, Texas, Aug. 3, 2019.

ABC News' Aaron Katersky and Josh Margolin contributed to this report.