Massachusetts Woman Sentenced for Fatal Stabbing After Social Media Feud

Alyssa Partsch pleaded guilty to manslaughter for killing 21-year-old Jazreanna Sheppard outside a Boston MBTA station.

Apr. 4, 2026 at 1:10am

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An extreme close-up of a single bloody knife blade against a pitch-black background, conveying the stark, gritty, and investigative nature of this tragic crime.A brutal act of violence stemming from an online feud leaves a young mother's family devastated.Boston Today

A 33-year-old Dorchester woman named Alyssa Partsch was sentenced to 15-20 years in state prison for the 2023 fatal stabbing of 21-year-old Jazreanna Sheppard outside the Park Street MBTA station in Boston. Partsch pleaded guilty to manslaughter after evidence showed the two women had an ongoing social media feud that escalated into a physical altercation, resulting in Sheppard's death.

Why it matters

This tragic incident highlights the dangers of social media feuds escalating into real-world violence, as well as the need for better mental health resources and conflict resolution education to prevent such senseless acts. Sheppard's family expressed the profound loss of a young mother, daughter, and cousin taken too soon.

The details

On July 20, 2023, Sheppard was in Boston Common with a friend when she encountered Partsch near the Park Street MBTA station. Video evidence and witness testimony showed the two women had an ongoing social media dispute, with Partsch threatening Sheppard and trying to provoke a physical fight. As Sheppard approached the MBTA pavilion, Partsch attacked her with a knife, stabbing Sheppard multiple times in the face, head, and torso. Partsch then fled the scene through the MBTA system, and Sheppard was transported to the hospital in critical condition, where she later died from her injuries.

  • On July 20, 2023, the fatal stabbing occurred outside the Park Street MBTA station in Boston.
  • In April 2026, Alyssa Partsch was sentenced to 15-20 years in state prison after pleading guilty to manslaughter.

The players

Alyssa Partsch

A 33-year-old woman from Dorchester, Massachusetts who pleaded guilty to manslaughter for the fatal stabbing of Jazreanna Sheppard.

Jazreanna Sheppard

A 21-year-old woman from South Boston who was fatally stabbed by Alyssa Partsch outside the Park Street MBTA station.

Judge Mary Ames

The judge who sentenced Alyssa Partsch to 15-20 years in state prison for the manslaughter of Jazreanna Sheppard.

Suffolk District Attorney Kevin Hayden

The district attorney who announced the sentencing of Alyssa Partsch for the manslaughter of Jazreanna Sheppard.

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What they’re saying

“It's the senselessness of this act, the senselessness of the act that you committed, Ms. Partsch. And I hope now that you see the consequences of what you've done to this family—a child who will not grow up knowing his mother except through this beautiful family who will keep her memory alive.”

— Judge Mary Ames, Presiding Judge

“Jazreanna Sheppard was poignantly and eloquently remembered by her family and friends today, remembered as a compassionate daughter, sister, cousin and mother who was taken from everyone's lives in a senseless, impossible-to-understand moment of violence.”

— Suffolk District Attorney Kevin Hayden

What’s next

The judge's sentence of 15-20 years in state prison for Alyssa Partsch will stand, as she pleaded guilty to manslaughter and avoided a jury trial.

The takeaway

This tragic case underscores the urgent need for better mental health resources, conflict resolution education, and social media accountability to prevent senseless acts of violence stemming from online feuds. Jazreanna Sheppard's family's heartbreaking loss serves as a somber reminder of the devastating human toll of such violence.