John Wesley Jeffries, the Fredericksburg man wanted as a "person of interest" in the killing of a Fauquier County couple, has been captured, police said.

Law enforcement members in the area were watching the home of a female friend of Jeffries in Fredericksburg on Wednesday, when they spotted the 60-year-old fugitive about 4 p.m. He was quickly arrested.

"All I know now is he was taken into custody in the Fredericksburg area," said Lt. James Hartman, of the Fauquier County Sheriff's Office.

Jeffries has not been charged in the double-killing of Nelson Slack, 80, and his wife, Ethel Slack, 74, in Fredericksburg.

He was picked up, instead, on a separate warrant from Spotsylvania County on charges of kidnapping and attempted murder of an ex-wife.

Deputies said Jeffries was a person of interest in the Fauquier County double-homicide.

The Slacks were found by deputies who checked on the couple about 11 a.m. Sunday after they did not show up for church and had not been heard from in 24 hours.

Police found the husband and wife dead inside their residence. Both suffered trauma to the upper body.

Deputies found an abandoned vehicle belonging to Jeffries nearby the residence and the couple's vehicle in an area known to be frequented by Jeffries, deputies said.

Jeffries is a registered sex offender, having been convicted of kidnapping, rape and related sexual offenses in 1986.