Agnes Beatrice Lehmann, a 47-year-old woman of European descent, was brutally murdered in Chicago on July 10, 1970. Her body was discovered near the Grant Park Bandshell the following morning. The cause of death was determined to be severe blunt force trauma, as she had been beaten to death. The crime scene yielded a shoe that was later linked to a suspect, Wilbur McDonald, who was arrested twelve days after the murder.
McDonald was found unconscious near railroad tracks, reportedly the victim of a mugging.
During the investigation, McDonald admitted to having spoken with Lehmann on the night of her death but insisted that a Black man had emerged from the darkness, assaulted both of them, and forced him to flee. Despite his claims, the jury rejected his account, and he was convicted of murder. The court sentenced him to a prison term ranging from 100 to 150 years. Authorities did not reopen the case when, two years later, another woman, Judith Betteley, was beaten to death just a few yards from where Lehmann had been killed.
Further scrutiny of violent crimes in the area revealed a disturbing pattern. Lester Harrison, a serial killer with a long history of mental illness and violent offenses, was later implicated in a series of murders around Grant Park. Although Harrison was not officially charged with Lehmann’s murder, his involvement in subsequent killings raised questions about whether the true perpetrator had been identified. His violent spree included multiple assaults and homicides, some of which bore similarities to Lehmann’s case. Despite these connections, the conviction of McDonald remained intact, and no further investigations into Lehmann’s murder were pursued.
