The T-Bone Affair

Stacey Britten was calmly reading her Times one morning when something in the lower corner caught her eye. Someone had attacked a young man in an alley, stabbing him in the neck with a T-bone from a steak; a grisly weapon, to be sure. That isn't why she took note of it, however. Several years ago, she was the lead investigator for NYPD Robbery/Homicide assigned to a double murder, in which a reporter was killed in the same fashion, in the same location, in an identical manner, and, last, but not least, with a similar weapon. The bones, she knew, had been a weapon of opportunity, since the reporter had been found in a dumpster full of such garbage. That meant the perpetrator more likely than not had had Special Forces training, confirmed by the almost complete lack of evidence. The puzzling thing was, the killer had gotten completely away with the first crime, so why do it again, and so many years later?
Stacey had taken a leave of absence to raise a family, but this was unfinished business. More importantly, it was her unfinished business, and, all things considered, she doubted anyone new to the case would be able to put what little evidence there was together. So, with an infant daughter, and another child on the way, an expectant mother made herself go out on the streets of Manhattan to find a killer.