PHILADELPHIA Nine years ago, Richard Petrone and Danielle Imbo left a South Street bar.
The couple hopped into Petrone's Dodge Dakota pickup, the clock ticking toward 11:30 p.m., police said.
Then, they disappeared.
On Wednesday, the anniversary of their disappearance, the FBI made a plea for help in the unsolved case, which investigators believe involved foul play.
The agency has put the faces of Petrone and Imbo on 25 billboards across Philadelphia and South Jersey, hoping someone will come forward with a clue. Authorities have never found Petrone or Imbo since they left the bar, then known as Abilene's, near Fourth Street on Feb. 19, 2005. Petrone's pickup also remains missing. Petrone was 35 and Imbo 34.