A judge said a young child will grow up knowing his mother through relatives after a fatal meeting tied to an online feud.
BOSTON, Mass. — The courtroom’s strongest words on April 1 were not about charges or procedure but about absence, as a judge sentenced Alyssa Partsch to 15 to 20 years in prison and told her that Jazreanna Sheppard’s child will know his mother only through the family now carrying her memory.
That focus on the people left behind gave the case its lasting weight. Sheppard, 21, was killed after prosecutors said a social media dispute with Partsch escalated into a knife attack outside Park Street station in July 2023. Partsch, 33, pleaded guilty to manslaughter instead of going to trial on a second-degree murder charge, leaving the sentencing hearing to answer not whether the killing happened, but how the court would speak about its consequences.
Family members filled that hearing with a picture of Sheppard that was far more personal than any charging document. One relative described her as a deeply loved human being whose heart was poured into everyone around her. Prosecutors and the judge returned to those themes as the hearing moved toward sentencing. Suffolk County District Attorney Kevin Hayden said Sheppard had been remembered as a compassionate daughter, sister, cousin and mother. Ames spoke directly to Partsch before imposing sentence and said the killing was senseless, then turned to the reality facing the victim’s child. In that moment, the case stopped sounding like a file built from evidence and began sounding like a family account of what had been taken away. The sentence, though measured in years, was discussed in terms of birthdays, memories and a future in which a mother would be present only through stories.
The public facts of the killing remained stark. Prosecutors said Sheppard was in Boston Common near Brewer Fountain with a friend at about 11:30 p.m. on July 20, 2023. As they headed toward the Park Street MBTA pavilion, they encountered Partsch. Officials said the two women had argued beforehand in a series of online exchanges and had not met in person before that night. Prosecutors said Partsch approached Sheppard with a knife, and surveillance video later showed a physical altercation in which Sheppard was stabbed several times in the face, head and torso. Officers responding around 11:34 p.m. to the area of 121 Tremont St. found Sheppard with serious stab wounds. She was taken to a hospital and later died. Prosecutors said Partsch fled through the MBTA system after the attack.
For relatives and friends, the violence unfolded in a public place that many Bostonians pass through without thinking. That fact helped shape the grief around the case. Park Street sits at the edge of the Common, between city movement and city pause, where commuters descend to trains and pedestrians cross downtown late into the evening. The setting gave the homicide a jarring visibility even before an arrest was made. Months passed before police announced that Partsch had been arrested in Dorchester on Nov. 4, 2023, on a murder warrant. During that period, the loss remained ahead of the legal process. The public knew a young woman had been killed near the station, but not yet how the prosecution would frame the motive or how the encounter had begun. Later court filings and official statements tied the stabbing to threats and efforts to provoke a fight online, but by then the emotional center of the story had already formed around who Sheppard had been.
The legal resolution came quickly once it arrived. A trial had been scheduled for April 2026, but Partsch instead pleaded guilty to manslaughter. That plea reduced the need for a long public replay of evidence while still exposing the central allegations through the prosecution’s summary of the case. Judge Ames imposed a sentence of 15 to 20 years in state prison. The choice of a manslaughter plea rather than a trial on second-degree murder left some public questions unanswered, including the full reasoning behind the agreement and whether more detailed evidence would ever have been aired in open court. Still, the plea fixed the official outcome. Partsch admitted criminal responsibility. Sheppard’s family was given a hearing in which to speak. And the court moved from deciding what charge could be proved to marking the punishment for a killing that officials said grew out of online hostility and ended in a matter of moments outside a subway entrance.
The most enduring details from the hearing were neither legal nor technical. They were the lines that placed Sheppard in a chain of relationships: not just a victim, but a daughter, mother and loved relative whose absence has to be managed every day by others. Hayden praised the family’s expression of love and loss. Ames told Partsch she hoped the family might someday find peace. That kind of language does not settle debate or explain every motive, but it does show how courts often narrate violence after the evidentiary work is done. A homicide case may begin with police radio traffic, witness interviews and warrants. It often ends with people standing up in a courtroom to say who the dead person was when she was still here.
The sentence closes the criminal case for now, but the hearing made clear that the next milestone for those closest to Sheppard is not on a court calendar so much as in the ongoing work of preserving the life the judge said her family will keep alive.
Author note: Last updated April 23, 2026.