Cold Case

STILL SEARCHING: Johnston police Detective John Nardolillo Jr. is confident that Doreen Marfeo's husband, Stephen, was responsible for her disappearance in 1990.

QUESTIONS: John and Frances Drake, of Portsmouth, with a portrait of their daughter Diane, who was found slain in 1980 in Newport.

From left, Fall River Police Chief John M. Souza, Lt. Gene Rodrigues, and Det. John Fagan stand in the hallway of the Fall River Police Department with some of the files that the compiled on the Tommy Picard murder case.

Detective Lt. Geoffrey F. Rinn (left) and Detective Matt Haley of the East Greenwich Police Department do not know what caused the death of David Lemmer, whose skeletal remains were discovered in woods off Route 4.

TRAIL FADES: Scituate Police Chief William Mack and Deputy Chief Charles A. Collins with evidence in the 1987 murder of Paula Proulx, shown in inset photo.

FRUSTRATED: Ann-Marie Grenier, sister of slain Cumberland police detective Jimmy Grimes, and Ellen Grimes, his mother, hold up a photo of him. His death remains a mystery, seven years after his body was found in a car in a Providence parking lot.

When he became Hopkinton's police chief in 1997, former state trooper John Scuncio took an active interest in the case of heiress Cam Lyman, who had not been seen in 10 years. Her remains were soon found at her estate, background.

VICTIM: Well-known Warren store owner Amon Jamiel in 1975, three years before his death.

REFUSING TO GIVE UP: Retired Smithfield police Detective Capt. Gregg L. Catlow, left, was the first to investigate the death of a man found floating in Stump Pond. Detective Sgt. Kenneth A. Brown, right, is the latest officer to handle the case. Catlow holds an FBI sketch of the victim.