The man killed in Charlottetown Friday was a father of one and had a twin brother.
Charlottetown police say Kent David Gallant, 45 of Charlottetown, died at the scene of the stabbing at the corner of St. Peters Road and Brows Lane.
A 17-year-old girl has been charged with first-degree murder in the case.
"For anybody to be charged with murder on P.E.I. is rare, let alone a 17 year old," said Deputy Chief Gary McGuigan. "There is a lot of information coming in. Investigators are in the process of interviewing people."
Friends say Gallant was funny and hardworking. Neighbour Anne Harrison watched paramedics try to save the man.
"It's very unsettling," Harrison said. "Here you are in your house, watching what almost seems like something you'd see on television, instead of in your own neighbourhood."
Gallant's body was transported to the Dr. William D. Finn Centre for Forensic Medicine in Halifax where an autopsy was performed on Sunday. The preliminary cause of death was from an upper body stab wound.
The accused was arrested at about 2:30 a.m. Saturday inside a perimeter that was set up around the crime scene. She will next appear in court Wednesday.
The police investigation is ongoing and they are still asking for any witnesses to come forward.