RALEIGH, NC – A 23-year-old man suspected of shooting at least eight vehicles on a North Carolina’s busy highway and several homes in recent days, injuring one person, will remain in custody without bail for now, a judge ruled Friday.

Andrew Thomas Graney was arrested Thursday at a home in Raleigh, the state capital. Two dozen policemen with guns drawn approached the house and later brought out two people in handcuffs, WRAL-TV reported. The other person was released without charge, police said.

Graney, 23, is charged with one count of assault with a dangerous weapon with intent to kill or cause serious injury and 11 counts of shooting into an occupied vehicle or dwelling, the police said in a statement. Authorities have not released a possible motive.

Graney, a graduate of North Carolina State University, made his first court appearance Friday via video conference for a bond hearing and his next court date. He chose to have a court-appointed attorney, Ricky Elmore. Wake County Chief Public Defender Deonte’ Thomas said in an email after the hearing that Elmore had met with Graney, but that the office had no further comment.

Bullet casings found at most of the shooting scenes were tentatively matched to the same firearm; Graney’s vehicle matched descriptions of a vehicle at some locations; and cell tower data placed his phone at each of the locations, Wake County Assistant District Attorney Stacy Newton said.

“This was a series of absolutely senseless and random acts of violence,” Newton said.

District Judge Debra Sasser ultimately decided to withhold bond, citing the fact that the shootings took place over four days. A future judge could allow bond, but Graney would have to prove he’s not a danger to the public.

“This is one of those cases that strikes fear into the heart of the entire community,” Sasser said. “I’ve had colleagues texting me saying, ‘don’t go on I-40 today.’ And I’m sure a lot of other people in the community got that, too.”

Graney’s relatives did not immediately respond to voicemails or emails seeking comment.

Graney’s mother, Treka Graney, told WRAL that she hadn’t seen her son in months and that he wasn’t raised with guns in the house. “This is not my son,” she said.

“I was totally blown away,” she said. “It’s totally out of character. … He’s a sweet boy. Everyone loves him. He always stands up straight, he is very polite. He always follows the rules.”

The shootings, which reportedly began on Monday, gained attention after multiple people reported gunshots along a stretch of Interstate 40 in Raleigh and suburban Cary around midnight Wednesday morning, police said. Reports of similar shootings then emerged.

Authorities said eight vehicles were hit, including two on Monday, four on Wednesday and two on Thursday. Four homes in the area were shot at Wednesday, police said. They were all connected, the Raleigh police chief said.

One of the shots struck a woman in the leg early Monday as she traveled on I-40, police said. Her injuries were not considered life-threatening. Most of the cars that were shot contained only the driver, but one had four occupants, authorities said in court filings. People were also inside the homes when they were shot, police said.

Investigators believe a Llama .45 Max 1 handgun was used in the shootings, court records show.

Graney’s next court appearance is Nov. 27.

The attacks are just the latest in US freeway shootings. In Kentucky in September, law enforcement conducted a massive, multi-day search for a man who shot up 12 vehicles and injured five people on Interstate 75 human remains were later found and identified.