GARLAND (CBSDFW.COM) – A Garland police officer shot an aggravated robbery suspect who held a clerk hostage with a knife at a convenience store.

Officers responded to the robbery in progress  in the 100 block of East Buckingham Road at 9:15 a.m. on Monday.

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The caller told police there was a man inside the store, behind the counter with the clerk, holding a knife.

When officers arrived and entered the store, they saw the man standing behind the counter holding a knife, who immediately began yelling to the officers to kill him. Officers could not see anyone else standing behind the counter.

At one point, the suspect made a statement of, “kill me or I’m going to kill this man,” and made a quick movement to the floor. Officers quickly approached the counter and observed the man on the ground holding the store clerk. The suspect held the clerk around his head, held his body close to his own, and wrapped his legs around the clerk, while lying on the ground and holding a knife in his right hand near the clerk’s chest and neck.

The suspect repeated numerous times “kill me or I’m gonna kill this man.”

Officers immediately began pleading with the suspect to drop the knife or let the clerk go; however he refused, and asked officers for their gun so that he could kill himself, according to police.

Officers continued negotiations and de-escalation techniques for 15 minutes, attempting to peacefully end the situation. The suspect stated that he was not going to release the clerk because the officers would not shoot him if he let the clerk go.

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The suspect then stood up and forced the clerk to his feet. He allegedly held the clerk around the neck with his left arm, holding the clerk’s body close, while holding the knife near the clerk with his right hand. The suspect stopped talking with the officers, and lowered the knife toward the body of the clerk, at which time a veteran officer discharged his duty weapon one time, striking the suspect. As a result of the officers’ actions, the clerk, identified as a 25 year old Irving resident, was able to escape unharmed.

Due to the nature of the call, Garland Paramedics were stationed nearby and transported the suspect to a local hospital where he remains in critical condition.

The suspect is identified as Avery Norman, 26.

Garland Detectives, along with members of the Dallas County District Attorney’s Office Public Integrity Unit, responded to the scene to investigate according to standard procedures.

The 27 year Garland Officer will be placed on paid administrative leave in accordance with departmental policy.

The investigation is ongoing.

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(credit: Chopper 11)