A 23-year-old Northern Virginia man who graduated from college as a member of Phi Beta Kappa was found slain early Sunday in Silver Spring, Montgomery County police said.

Police identified the victim as Mark Edward Waugh of Great Falls. A member of his family who was reached at home Sunday night said she had no details about the incident.

“We actually don’t know anything,” she said. “Except that our son is dead.”

Police said a suspect had been arrested and charged.

Officers went to an apartment in the 1200 block of East-West Highway about 3:25 a.m. Sunday after an occupant called 911.

Police said two men were in the apartment. One was Waugh, who was unresponsive and suffering from “what appeared to be cutting wounds.” They said the other man, Rahul Gupta, 24, was taken into custody and charged with homicide. Police said Gupta had an address in McLean but was also known to frequent the address on East-West Highway.

Police said the 911 call was made by a 23-year-old woman, who they did not identify.

A neighbor of the Waugh family in Great Falls described Mark Waugh as an “outstanding young man.” He was “very intelligent, well-mannered, well-spoken,” she said.

She said Waugh had gone to Langley High School and graduated from James Madison University in Harrisonburg, Va., before entering the Georgetown University Law Center.

A spokesman for James Madison said a Mark Waugh of Great Falls graduated magna cum laude in May 2012 as a history major. Records indicated that the same man was inducted last year into Phi Beta Kappa.

There was no answer late Sunday at a telephone number listed to Gupta.