The autopsy report of a man who was shot dead by two state troopers after a traffic stop in Dallas shows he had 16 gunshot wounds, including shots to the head, front and back torso and both legs.

Schaston Hodge, 27, was shot dead by the troopers Joshua Engleman and Robert Litvin on 17 August, following what police described as a short pursuit after the troopers attempted to stop Hodge for failing to use a turn signal.

The Dallas Morning News obtained the autopsy report by the Dallas county medical examiner.

“They killed my son like he was an animal,” Hodge’s mother, Shandra Brackens-Hodge, said in a statement to the newspaper. “They shot my son 16 times, they almost blew his head off.”

Engleman and Litvin were working in Dallas as part of Texas governor Greg Abbot’s decision to send troopers to help city police during an increase in violent crime.

Both troopers involved in the shooting are white. Hodge was black.

Lt Lonny Haschel, a spokesman for the Texas department of public safety (DPS), said Texas Rangers investigated the shooting and turned a report over to the Dallas county district attorney’s office. A grand jury declined to indict the troopers.

“The entire incident, captured on video, was presented to a Dallas county grand jury and returned a no bill,” Haschel said in an email, the newspaper reported.

The Texas DPS has declined to release videos of the shooting.