The teenage suspect in a Raleigh mass shooting is well enough to move from WakeMed to a juvenile detention facility, Raleigh police tell WRAL News.

Austin Thompson, 15, was taken to the hospital with serious injuries, including a gunshot wound to the head, on the night of Oct. 13. Since that time, he had been under 24-hour guard.

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On Thursday, Thompson was moved from WakeMed to the Wake County Juvenile Detention Center, police said. Another source said he was then transferred to a juvenile detention center with medical facilities outside of the Triangle.

Wake County District Attorney Lorrin Freeman has said she will pursue adult charges against Thompson should he recover enough to stand trial.

Until Thompson has a probable cause hearing – and a date has not been set – the case and his custody remains in the juvenile justice system.

Freeman told WRAL News, "There will be recurring review of his secured custody status."

"We will be moving forward with a probable cause hearing and then asking that those be transferred to adult court or Superior Court for trial as an adult,” she said.

Austin Thompson, 15, suspected of shooting 7, killing 5 of them in east Raleigh

Sources tell WRAL News that Thompson opened fire just before 5 p.m. on Oct. 13 in the streets of the Hedingham neighborhood and on the Neuse River greenway, killing five people including his 16-year-old brother, James Thompson.

Four of the Thompsons' neighbors were also killed: an off-duty Raleigh police officer, Gabriel Torres, 29, who was on his way to work when he was shot; Mary Marshall, 34; Nicole Connors, 52, and Susan Karnatz, 49. Two people were injured. Raleigh police officer Casey Clark, 33, was treated and released from the hospital on that night. Marcille "Lynn" Gardner, a special education teacher who just turned 60, remains at WakeMed.

After a three-hour search, Austin Thompson was cornered by law enforcement and taken into custody with a gunshot wound to his head. Police have not said whether his injuries were self-inflicted or the result of an exchange of gunfire with officers.

“The one unanswered question is, 'Why did this happen?' Was it something inside that family unit? We just don’t know the answer. I think the only person who knows the answer is that young man," said defense attorney Lee Turner, who represents one of the six officers who got into a gun battle with the suspect on Oct. 13.

Given the evidence of shell casings, eyewitnesses and body camera video, Turner said, "I don’t think it’s going to take a lot to connect the dots as far as enough evidence to prosecute him.”

The other big question is where Thompson got the guns he allegedly used in the mass shooting. To date, police have not answered that or charged anyone else in connection with the shootings.

Turner predicted that investigators and prosecutors will "look at the level of protection that the parents had inside the residence and at the same time just determine who owned those weapons and who was responsible for that.”

Thompson's parents, Elise and Alan Thompson have said there were no warning signs of what their son was capable of.

They released a written statement after the shootings, but have said they are not planning to conduct interviews with media members.