Cold Cases in Philadelphia, Pennsylvania

ColdCaseIndex documents 8 cases in Philadelphia, Pennsylvania, dated 1949 to 2005. 5 are recorded as unsolved. The earliest is Dorothy Forstein (1949) and the most recent is Danielle Imbo and Richard Petrone Jr. (2005).

Status of the 8 cases
  • Unsolved 5 (62%)
  • Solved or convicted 3 (38%)
Philadelphia cases by decade
Decade of the incident or disappearance. Select a column to see every case from that decade.
012341940s: 1 case1940s1950s: 1 case1950s1960s1970s: 1 case1970s1980s: 3 cases31980s1990s: 1 case1990s2000s: 1 case2000s
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All 8 cases

Unsolved 2005

Danielle Imbo and Richard Petrone Jr.

Danielle Imbo, 34, and Richard Petrone Jr., 35, a dating couple, vanished after leaving a bar on South Street in Philadelphia on the night of February 19, 2005. Neither they nor Petrone's pickup truck have ever been found.

Philadelphia Missing Person
Unsolved 1997

Judy Smith

Judy Smith, a 50-year-old nurse from Newton, Massachusetts, vanished from a Philadelphia hotel in April 1997. Five months later her stabbed remains were found more than 600 miles away in the North Carolina mountains, and how she…

Philadelphia Homicide Age 50
Conviction 1986

Gary Heidnik Victims

Gary Heidnik abducted six women between November 1986 and March 1987 and held them captive in the basement of his North Philadelphia home, where Sandra Lindsay and Deborah Dudley died.

Philadelphia Serial Killer Victims
Unsolved 1985

The Frankford Slasher

The 'Frankford Slasher' is the name given to an unidentified serial killer who stabbed to death at least eight or nine women in and around the Frankford neighborhood of Philadelphia between 1985 and 1990.

Philadelphia Multiple Homicide
Conviction 1981

Philip Testa

Philip "Chicken Man" Testa, 56, reputed head of the Philadelphia crime family, was fatally injured on March 15, 1981 when a nail-packed bomb exploded on the porch of his South Philadelphia home.

Philadelphia Homicide Age 56
Conviction 1977

Holly Maddux

Helen "Holly" Maddux, 30, was last seen in Philadelphia on September 9, 1977; her body was found in March 1979 in a trunk in the apartment of her former partner, Ira Einhorn.

Philadelphia Homicide Age 30
Unsolved 1957

Joseph Augustus Zarelli

A young boy's battered, naked body was found in a cardboard box in Fox Chase, Philadelphia. Known for decades as 'America's Unknown Child,' he was finally identified in 2022 as Joseph Augustus Zarelli through DNA genealogy.

Philadelphia Homicide Age 4
Unsolved 1949

Dorothy Forstein

Dorothy Forstein, the wife of Philadelphia magistrate Jules Forstein, disappeared from her home on the night of October 18, 1949. Her young daughter said she saw a man in a brown cap carry her unconscious mother out of the house.

Philadelphia Missing Person Age 40

Other cities with several cases