BANGOR, Maine — The mother of the 14-year-old Corinth boy found unconscious and bloodied on Route 15 late Friday night is asking the public for help finding the person responsible.

Angie Ouellette of Charleston, who held hands with her daughter Ashley during a short press conference at Eastern Maine Medical Center on Tuesday afternoon, also gave an update on the condition of her son, Christopher Killian of Corinth.

He is in the intensive care unit at EMMC and is showing signs of recovery, she said.

“Christopher has waking moments and is doing a lot of sleeping,” Ouellette said. “We are concerned about his head injury. It will take time to assess the extent of that injury and will likely take time for him to heal.

“He woke up enough to drink an Ensure this morning and ask for some chips,” she said.

The doctor denied the chips, the teen’s mother said.

Killian was unconscious and bleeding from a head wound when a passing motorist found him in the road just before midnight Friday and called 911, state police Lt. Wesley Hussey said Sunday.

“All we know is that he left a friend’s house to walk home at about 11:15 p.m.” and was found a short time later near the Countryside Restaurant, the teen’s mother said. “That’s all we know. We need to know more.”

Police have not been able to interview the teen and therefore do not know if Killian was a victim of a hit-and-run or if something else had happened to him, according to Stephen McCausland, spokesman for the Maine Department of Public Safety.

A hit-and-run “is one of the scenarios that we’re looking at,” McCausland said Tuesday. “There is a good possibility that the vehicle may not have known it hit the teen. At this point no motorist has come forward.”

Because police have not yet interviewed the teenager, they still do not know if he was walking in the roadway or along the side of the road, he added. McCausland also said he did not know if Killian was wearing dark clothing.

Ouellette asked those with information about what happened to come forward.

“I’m here today to ask that anyone who has any information about what happened to Christopher to please come forward and speak with Maine State Police,” she said, with tears streaming down her face. “Maybe it was an accident or maybe somebody did not realize they hit him, and that’s OK. Please come forward.”

The teen’s mother then thanked the man who found her son.

“He called 911, applied pressure and stayed with my son until help arrived,” she said. “I will always be grateful to you. Thank you.”

Ouellette hugged her daughter as the press conference ended and asked for privacy while her son heals.

State police ask anyone with information about the incident to call 866-2121 or 800-432-7381.

Bangor Daily News reporters Dawn Gagnon and Nick Sambides contributed to this report.