UPDATED Wednesday afternoon.
A former South End resident was ordered held without bail on charges he murdered an elderly woman in her Union Park apartment in November, 1989.
Charles Brook, 66, already in prison on unrelated charges, is charged with the sexual assault and strangulation of Zahia Salem, 87, the Suffolk County District Attorney's office reports. The DA's office reports a DNA match led Boston Police cold-case investigators to Brook; they then compiled additional evidence against him.
The DNA evidence came from scrapings taken from under Salem's fingernails following what appeared to be a brutal struggle and from a cigarette butt found in a saucer - she did not smoke - the DA's office reports. They matched a sample Brook was required to supply following a 1991 conviction.
Boston Police report that Salem lived alone in the second floor of a three-story building she owned; a first-floor resident discovered her body several hours after her murder.
Early in 2011, the physical evidence recovered from the scene was submitted to the Boston Police Crime Lab and evaluated by the [Cold Case] Squad and the criminalist. As the criminalists continued to examine evidence, investigators doggedly sought out potential witnesses and conducted additional interviews.