Areti Koularmanis, 23, a white Greek-Canadian woman, was staying in the Jamaica section of Queens with her husband, Dimitros, and their small children during a family visit when the night turned violent on September 19, 1970. Long after the household had settled, an intruder slipped in through a window and ended up in the bedroom where she slept. What began as a prowler’s silent break-in exploded into panic the moment she realized someone was there.
The attacker drove a knife into her
throat to stop her from screaming. Bleeding heavily, she managed to stagger from the room and rouse her husband before collapsing. She was rushed to Mary Immaculate Hospital, but the wound was catastrophic; accounts describe her dying only a few hours after the attack. In the wake of the killing, investigators were left with little to hold onto. Reports describe a scene stripped of obvious clues, with the intruder gone as quickly as he had arrived, and valuables said to be missing from the room where the stabbing happened.
Over time, the case became tied to a wider terror that gripped parts of Queens: a nocturnal prowler breaking into homes and attacking sleeping victims. That fear sharpened in the years that followed, especially after additional stabbings in the same general area. The name that ultimately surfaced was Joseph Baldi, a Queens man with a long history of burglaries and psychiatric confinement, who had been arrested in September 1971 after a prowler call when, according to court accounts, he pulled a pistol on an officer and the gun misfired. He was indicted on those charges, found incompetent to stand trial after a hospital examination, moved through psychiatric facilities, and then released from Creedmoor in early 1972 without notice to prosecutors or the court, a bureaucratic failure later described in court records as a key piece of how he ended up back on the street.
The break that brought Baldi to the center of the Queens stabbing investigations came after another killing in June 1972. Detectives staked out the neighborhood, spotted him in the early morning hours, and began asking questions about why he was there. When police went to his apartment, they found knives and sexually explicit magazines, and he agreed to come to the station. After being advised of his rights, he was questioned by homicide detectives, and court descriptions portray an interrogation in which he slipped into a trance-like state—pantomiming and re-enacting a stabbing, collapsing afterward, and later being taken to the crime scene to act out the killing again. He was arrested and charged in that June 1972 murder, and the investigation widened immediately as detectives looked back at similar unsolved attacks.
With counsel present during later questioning in July 1972, Baldi gave statements in which he admitted involvement in multiple crimes, including three additional murders beyond the June 1972 case, and indictments followed for those other killings. The prosecutions that grew from those statements became complicated. Sources describe a judge later dismissing the murder charges connected to Areti Koularmanis on a procedural ground tied to representation during the interrogations, and the publicly available accounts do not clearly settle whether those dismissals were ultimately overturned. What the court record does make clear is that Baldi was convicted after separate trials for the September 1971 crimes and, in a later judgment, for murder in the second degree tied to the June 1972 case; he received a long prison term and remained incarcerated at Sing Sing until his death in 2009.
