By Joseph Goldstein and J. David Goodman
The robber fled through a backyard in Queens, dropping a jacket and gloves and with them, genetic material.
Detectives failed to find a suspect in tests comparing the material against a DNA database of convicted criminals. But the search yielded a near match to a convict with an unusually similar DNA profile. The convict may not have been the robber, but perhaps one of his relatives was.
The process of turning crime-scene DNA into a family tree of possible leads has been quietly undertaken in more than two dozen cases in New York City since 2009, when a divided state committee voted to allow the release of so-called partial match DNA data to investigators.
Source: The New York Times