Authorities say an Ohio man suspected of killing his on-and-off girlfriend during a vacation to North Carolina's Outer Banks is in custody after a monthlong nationwide manhunt. The U.S. Marshals Service says Nathan Summerfield was captured Wednesday morning in northeast Ohio. The agency says authorities surprised Summerfield at a motel in Wadsworth, where he had just checked in a day earlier. Summerfield was wanted on a murder charge in the death of 33-year-old Lynn Jackenheimer of Ashland, Ohio. She disappeared in July while vacationing with Summerfield and her children. Her body was found in a vacant lot in Frisco, N.C., about 20 to 30 miles from where she'd been vacationing. The suspect's brother has told authorities that Summerfield said he strangled Jackenheimer.