CHARLOTTE, N.C. -- The Charlotte-Mecklenburg police officer who used a Taser on a north Charlotte teenager, leading to his death, has been suspended for five days.

Darryl Turner, 17, died in March after Officer Jerry Dawson used the Taser on him in the Food Lion grocery store on Prosperity Church Road. Turner’s autopsy report said the stress of the situation and the Taser caused his heart to stop.

The store manager had called police when Turner, an employee, became disruptive. Surveillance tape shows Turner, in a grey tank top, knocking over displays, yelling, throwing things and aggressively gesturing at the manager, seen in a pink shirt. Dawson fired the Taser when Turner turned away from the manager and began walking toward him. Dawson reported he told the teen to stop but he did not comply.

In a hearing Tuesday, the police department’s review board found Dawson was justified in his use of the Taser, but his prolonged use of the weapon was not.

“We believe that Officer Dawson’s deployment of the Taser was justified and within our policy, but it was the length of time that was neither trained nor we expect our officers to do,” explained Deputy Chief Ken Miller.

Authorities said the officer held the trigger of the Taser continuously for about 37 seconds, during which Turner continued to walk, and grabbed a small rack and threw it across the floor before falling to the ground.

Miller said Dawson was caught off guard when Turner did not immediately fall.

“(It) took Officer Dawson by surprise. He wasn't sure the Taser engaged in the right way,” he said.

Dawson also shocked Turner a second time, for the policy-recommended time of five seconds, when he did not comply with commands to put his hands behind his back.

The district attorney decided earlier this month not to file any criminal charges against Dawson.

Turner’s family has hired attorney Ken Harris.

“There were issues raised about this training, and there may be subsequent measures taken relative to his understanding of an appropriate use of a Taser,” Harris said.

While police said Dawson didn't follow policy because he held the trigger down for so long, Harris contends the Taser gun never should have been fired in the first place.

“It’s been our contention all along that Darryl did not make an aggressive move towards the officer at all,” he said.

The department is now reviewing its policy concerning the use of Tasers. Dawson will also receive additional Taser training.

Dawson, 39, has been on the force for 15 years and is assigned to the University City Division.