The target of the rally mass shooting remains a mystery, with no connection between the victims: police | Media Pyro

A motive for a mass shooting that killed five people and wounded two others at a nature trail in Raleigh, North Carolina, remains unknown, as police released a five-day report on the incident Thursday.

The suspect, 15-year-old Austin Thompson, was critically injured in the Oct. 13 shooting. Raleigh police have not said whether the suspect was shot by officers or himself.

The victim’s 16-year-old brother, James Thompson, was among those killed, the Thompson family said.

James Thompson was shot before the other victims, Raleigh police said in a new statement Thursday. The teenager was found in a home with gunshot and stab wounds.

Raleigh police said there was no apparent connection between the slain victims “other than they lived in the same neighborhood.” Susan Karnatz (49), who was on the run, was the other person killed. Gabriel Torres, 29, went to work as an off-duty police officer; Mary Marshall, 34, walks her dog; Nicole Connors, 52, was also on her front porch with her dog.

Connors’ dog was also shot and killed, police said.

Marcylee Gardner, who was shot in a driveway, remains in critical but stable hospital condition, police said Thursday.

The police department said it was limited in how much information it could release “due to the age of the suspect and the ongoing criminal investigation.”

At one point the suspect opened fire on police, injuring Officer Casey Clark, and authorities returned fire. Police said the teenager was wearing camouflage clothing when he was taken into custody and was in possession of a gun, handgun, ammunition and knives.

The Thompson family said in a statement Tuesday, “We are overcome with grief for the innocent lives lost … and we pray for all those affected by these senseless acts of violence.”

“There are so many unanswered questions,” the family said. “There were no signs or warning signs that Austin could do something like this.”