A family dispute at a residence on Boston Street escalated into violence, leaving a 38-year-old man with serious internal injuries. Around 2:05 p.m., the victim was involved in a verbal altercation with his twin sister when she allegedly armed herself with a knife and stabbed him once in the lower right abdomen. The victim was rushed to the Roxborough General Hospital and subsequently transferred to the Scarborough General Hospital, where he underwent emergency surgery. Police are currently investigating the circumstances surrounding the domestic incident.