The remains of a Springfield man who has been missing since 2011 were found in Frederick, and detectives are investigating the case as a potential homicide, Fairfax County police said Friday.

Oscar Velasco Montano’s body was located on Aug. 8 by tree trimmers in a wooded area about 10 to 15 yards off New Design Road, in Frederick County, Md., according to the Frederick County Sheriff’s Office. His body was identified through DNA testing.

The Fairfax County police declined to say why they had released this information several months after the discovery of the body.

The 30-year-old went missing under suspicious circumstances.

Montano was last seen on July 9, 2011 at Tysons Corner, where he was working in an office building on International Drive and Route 7.

According to a Facebook page set up to help find him, Montaino talked to his manager around 1 p.m. and told him he was going out with some friends.

Family members said he did not come home that night. The next day Montano’s sister spotted his Green Plymouth Voyager at the mall, but then it disappeared, according to the Facebook page.

His family reported him missing two days after he disappeared.

On July 17, 2011, his family found his car across Route 7 from where he was working, behind an Olive Garden.

Family members said Velasco worked in construction and did not get into trouble. He slept at his aunt and uncle’s home on Amherst Avenue in Springfield.

Police declined to say what led them to believe Montano may have been murdered or if his body showed signs of violence.