Kosilek murdered McCaul in May, 1990. On the day of the murder, McCaul had returned home to the couple's condominium in Mansfield, Massachusetts, and discovered Kosilek wearing McCaul's clothing. Kosilek claimed that the female clothing of Kosilek stirred McCaul with transphobic rage, leading McCaul to throw boiling tea at Kosilek's face, causing Kosilek to knock McCaul down.
Kosilek committed murder against McCaul in May, 1990. On the day of the crime, McCaul returned home to their condominium in Mansfield, Massachusetts, and encountered Kosilek wearing McCaul's clothing. Kosilek alleged that the sight of female attire on her triggered transphobic anger in McCaul, prompting McCaul to hurl boiling tea at Kosilek's face, resulting in Kosilek knocking McCaul to the ground.