RALEIGH, N.C. (AP) — Police believe the shooting rampage that left five dead in North Carolina’s capital city last week began when the 15-year-old suspect shot his older brother, according to a report released Thursday.

More details about the shootings emerged from the four-page preliminary report that Raleigh’s police chief delivered to the city manager.

The victims in the Oct. 13 shooting included an off-duty city police officer, according to police. Two others were wounded, one of whom remains in critical but stable condition, the report said.

Witnesses had described a shooter wearing camouflage clothing, which the report confirmed, and firing a shotgun in a subdivision and along a nearby walking trail.

Police said the suspect — still not named in the report because he is a juvenile but identified by his parents this week as Austin Thompson — was captured in a barnlike structure more than four hours after the first emergency call. The report said the teen had traveled nearly 2 miles from where his brother was found shot and stabbed. Police exchanged gunfire with the teen and one officer was injured. The officer was treated at a hospital and released that evening.

The report said officers gave repeated commands for the suspect to surrender and special officers worked to figure out his exact location. Police ultimately decided to advance toward the building where he was found.

When officers arrested the teen, he appeared to have a single gunshot wound and had a handgun in his waistband. A shotgun and shells were lying nearby, according to the report. It didn't describe how he obtained the weapons or how he was wounded.

Thompson was hospitalized in critical condition after his arrest and was moved to a pediatric ICU unit, his parents said. The top local prosecutor has said he will be charged as an adult.

The teen had a backpack that contained several types of rifle and shotgun ammunition, the report said, and the sheath of a large hunting knife clipped to his belt. A knife was found at the front of the outbuilding where he was captured, police said.

Based on the teen's estimated direction of travel, police believe 16-year-old James Thompson, identified by his parents as the suspect’s brother, was shot first last week, the report said.

The motive for the attacks is still unknown. 

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