MIDLOTHIAN, Va. (AP) — Chesterfield County police have arrested a physician after he was indicted for allegedly killing his girlfriend, who has been missing since 2014.

The department said in a news release that officers arrested 39-year-old Dr. John E. Gibbs II of Ashland on Tuesday. Authorities say a grand jury indicted Gibbs Monday on a charge of first-degree murder in the death of 26-year-old Zulma Pabon.

Investigators say Pabon, a nurse, was last seen on June 6, 2014, leaving her job at a hospital in the same complex where Gibbs worked.

Police say detectives believe Pabon is dead, although her body has not been found. Investigators say the case is now classified as a no-body homicide.