DETROIT — A Michigan State Police trooper who fired his Taser at a teenager before the 15-year-old crashed an all-terrain vehicle and died had to make a “split-second decision” under tough circumstances, an attorney said.

“The death of Damon Grimes was tragic, and our thoughts and prayers are with his family and friends,” said Richard Convertino, an attorney for Trooper Mark Bessner.

Bessner is suspended while authorities investigate what happened last Saturday in Detroit. He’s accused of firing a Taser at Damon from his patrol car. The teen crashed the ATV and died.

State police announced Thursday that troopers would no longer conduct high-speed chases in Detroit in response to traffic violations or misdemeanors.

“Under no circumstance should any police officer ever shoot like a cowboy out of his vehicle,” said attorney Geoffrey Fieger, who is representing Damon’s family and suing for $50 million.

Convertino released a statement Wednesday, saying the teen was evading arrest while driving recklessly in an urban area.

“Trooper Bessner was forced to make a split-second decision under circumstances on the scene and at the moment, which was tense, uncertain and rapidly evolving,” Convertino said. “We are fully cooperating with the ongoing investigation and trust the investigators will assess the facts objectively in light of the totality of the circumstances.”

Meanwhile, more than 200 people gathered Wednesday night at the crash site, including 20 people on ATVs. Some shouted obscenities at police, and two men jumped onto the rear of a police cruiser. No arrests were made, Detroit Sgt. Nicole Kirkwood said.

“It shouldn’t have to be like this,” said Damon’s mother, Monique Grimes. “He was only 15. He enjoyed riding his bike. I just want justice for Dae Dae.”