911 call: Man killed girlfriend on Outer Banks vacation

The brother of a man who authorities consider a person of interest in the disappearance of a 33-year-old Ohio woman called police to say that his sibling told him he strangled her.

In a 911 recording provided by the Ashland County Sheriff's Office, 31-year-old Jacob Summerfield told an emergency dispatcher that his brother, whom he identifies as Nate Summerfield, returned without his ex-girlfriend from vacation in North Carolina.

"I wanted to report a possible murder," Jacob Summerfield said in the call. "My brother was in North Carolina with his ex-girlfriend and he came back and said he strangled her."

Jacob Summerfield then said his brother left his parents' home in Ashland.

"He just took off," he said, before saying he had no idea where his brother may have gone.

Ashland County sheriff's Capt. Carl Richert said his office was working with the Dare County Sheriff's Office on the disappearance of Lynn Jackenheimer of Ashland, who traveled 500 miles to the Nags Head area and was last seen in the Salvo area of Hatteras Island on July 4.

Crews from the Dare Sheriff’s Office, National Park Service, Nags Head Police Department and the Kill Devil Hills Police Department were looking for Jackenheimer's remains.

Authorities say she went on vacation with her two children and her boyfriend but didn't return with them. Police said Nate Summerfield returned the children to the Ashland area and left them with his family.

They described him as a person of interest in Jackenheimer's disappearance.

Police are seeking any tips about the whereabouts of Jackenheimer, who is about 5-foot-8 with brown hair and blue eyes.

Richert said deputies have Nate Summerfield's cellphone and surveillance video showing him driving a 2009 dark metallic gray four-door Honda Civic at an Ashland Bank around 10 a.m. Sunday.

The cellphone was obtained in Ashland, but Richert declined to specify the details.

More than 150 friends, relatives and supporters gathered for a candle-lit prayer vigil Monday night. The vigil was led by Rev. Sanford Mitchell of Trinity Lutheran Church, where Jackenheimer attended youth group activities.

Dare County authorities are asking local residents and anyone who might have met the couple to contact the sheriff's office at 252-475-5980.