BANGOR, Maine — The man who reportedly assaulted a woman in Orono on Thursday morning and then held police at bay during a lengthy standoff in LaGrange somehow slipped out of the house and surrendered to police in Bangor.

Raymond Baker, 47, agreed to surrender to Deputy Chief Troy Morton of the Penobscot County Sheriff’s Office and an Orono detective about 8 p.m. Thursday and was arrested on four charges. He is scheduled to have his first appearance in court Friday afternoon.

The incident started about 7:50 a.m. Thursday when store employees at the Mobil convenience store, officially named Foster’s, on Stillwater Avenue called police to say there was an assault taking place in the parking lot.

“They reported a male had a female in a bear hug and the manager and female store clerk had gone out to help,” Orono police Capt. Josh Ewing said Friday.

By the time police arrived, Baker had taken off in the victim’s car and left his car behind. The woman was inside the store unharmed.

The victim, 27, told police “they had a verbal argument in LaGrange in the morning and she had left and gone to the store. He pulled up in another vehicle and grabbed her. They [store employees] were able to get him off her,” Ewing said.

The store clerk suffered the only injury during the confrontation, when Baker “slammed the [vehicle’s] door and hit her wrist,” the police captain said.

The actions of the store employees “obviously stopped a further assault,” Ewing said.

Baker drove the woman’s car back to the Brimstone Road residence they share in LaGrange, where it was located by police.

“We learned through some cellphone calls that he was at or near the residence,” Ewing said.

Orono requested assistance from Maine State Police and the Penobscot County Sheriff’s Office, the latter of which sent its Special Response Team to Brimstone Road.

“We made contact with him and there was ongoing communication with him,” Morton said Friday.

Police learned that Baker’s 2-year-old boy and his father were inside the home and worked to ensure their safety.

“Very early on contact was made with the grandfather of the child and he and the child came out and are safe,” Ewing said.

Only Baker knows when he slipped from the house and how he got to Bangor.

“Early reports were that he was at the residence and at some point he was able to make it to Bangor,” Ewing said.

The lengthy standoff tapped numerous resources, Morton said. Ewing said every precaution had to be taken to ensure the safety of everyone involved, including the female victim, the child, the grandfather and even Baker.

Baker turned himself over to Morton and the Orono detective on Sanford Street. He was arrested by Orono police and faces charges of domestic violence assault, assault, criminal restraint and violation of bail conditions.

Baker, who could face additional charges, is scheduled to appear at 1 p.m. Friday at the Penobscot Judicial Center by video conference.

BDN writers Dawn Gagnon, Judy Harrison and Alex Barber contributed to this report.