The Killing of Anne Simmons

The Killing of Anne Simmons is the violent, unresolved event at the center of the account Derek Simmons gives of his wife’s death. Anne was found stabbed in their Princeton home, and the evidence soon made her husband the focus of a murder investigation. Yet the case did not settle into a simple account of guilt: a concealed affair and physical clues supported the detectives’ theory, while Joseph Wieder’s later diagnosis raised the possibility that Derek could have acted without remembering it.

Marriage and the Night of the Killing

Anne and Derek had been married for five years and had no children. Derek worked as a maintenance man; Anne waited tables at a coffee shop on Nassau Street. Neighbours and family friends later described a couple who seemed happy and did not argue. That public impression would become part of the case’s uncertainty: it offered no obvious history of conflict, but could not explain what happened inside their home.

Derek’s account began with an ordinary evening. He said he returned at about seven after shopping, ate, watched television, and went to bed, expecting Anne to come home late from her evening shift. He said he woke at six the next morning and found her missing from their bed. In the hall, she lay in a pool of blood. Unsure whether she was alive, he called an ambulance.

The paramedics found Anne lifeless, with repeated stab wounds to her neck and chest. An assistant medical examiner pronounced her dead at the scene, and investigators were called in. The coroner later placed her death at approximately three in the morning, several hours after Derek said he had gone to sleep and before his call for help.

Evidence and the Investigators’ Theory

At first, investigators considered whether Derek might be telling the truth. The door was unlocked, but there was no sign of a break-in. They considered a possible intruder who had followed Anne inside, attacked her, and fled after realizing someone else might be in the home. Her handbag, with about forty dollars still inside, was found beside her body; nothing suggested a theft.

That possibility weakened as detectives uncovered information about Anne’s private life. She had begun an affair a few months before her death. The lover’s identity was never established publicly, but the relationship appeared serious: the two reportedly planned to marry after Anne obtained a divorce. On the night she died, Anne finished her shift and locked up the café at about ten. She and her lover then went to a cheap one-bedroom apartment on the same street, which Anne had rented two months earlier. They remained there until around midnight. A taxi driver’s account and the meter record placed her drop-off outside her building at 1:12 a.m.

Derek said he had not known about the affair, but investigators found that difficult to believe. They saw jealousy as a possible motive and considered the death a crime of passion. That inference was part of their theory, not proof of what passed between the couple after Anne came home.

The physical evidence sharpened their suspicions. Anne had defensive wounds on her arms, suggesting that she raised them to protect herself from an attacker, who had probably used a large knife. Two neighbours later said they heard her scream, though neither called the police because the screams stopped before they had fully woken. Investigators considered it unlikely that Derek, supposedly asleep upstairs, would not have heard a struggle and cries for help.

A friend also told detectives that a kitchen knife was missing. She remembered it because she had helped Anne prepare food for a birthday party only weeks earlier. The description pointed to the likely murder weapon. Derek acknowledged that such a knife had been in the kitchen but said he did not know what had happened to it, explaining that Anne had looked after the kitchen.

The detectives’ reconstruction was that Anne arrived home at 1:12 a.m., an argument followed, and Derek confronted her about the affair and her intention to seek a divorce. In their account, he took a kitchen knife and killed her about two hours later, disposed of the weapon, and then called an ambulance as though he had just discovered the body. They allowed that a mental breakdown or schizophrenic episode might have been involved, but left that question to the doctors.

Wieder’s Diagnosis and the Case’s Uncertainty

Derek’s earlier psychiatric history gave that question legal weight. As a teenager, he had suffered a severe breakdown and spent two months at Marlboro Psychiatric Hospital, missing his final year of high school. He was diagnosed with schizophrenia and remained on medication after his release. Although he had been a good student, he later abandoned plans for college, qualified as an electrician, and took a lower-level job at Siemens.

After Derek’s arrest, his attorney sought a finding of not guilty by reason of insanity. Derek himself continued to insist that he was innocent and refused to accept a deal. Wieder was one of three experts asked to assess his mental condition, and he took the case especially seriously. After examining Derek repeatedly, Wieder concluded that the earlier schizophrenia diagnosis was wrong and that Derek suffered from a rare dissociative disorder involving fugue states.

In such a state, a person could lose self-awareness, memory, and a sense of identity. In extreme cases, people might disappear and later be found living elsewhere under a new identity, with no memory of their previous life; others might return to an earlier identity while forgetting the intervening one. Wieder’s diagnosis therefore introduced a possibility rather than a settled account of the killing: under stress, and in the altered consciousness of waking suddenly, Derek might have acted as though he were another person and later remembered nothing of it.

Wieder’s report persuaded the court to commit Derek to Trenton Psychiatric Hospital, where he was placed with other potentially dangerous patients. With the agreement of the institution and Derek’s lawyer, Wieder continued treating him with therapy, hypnosis, and a then-revolutionary combination of anticonvulsant drugs. The killing thus left two questions bound together: what the physical and circumstantial evidence said Derek had done, and whether his memory and identity could have been absent from the act. The account establishes the competing explanations, but does not resolve the mystery by turning the diagnosis into proof of innocence or the detectives’ reconstruction into certainty.