ANSONIA, Conn. (WTNH) — Police have confirmed they are investigating a homicide in the area of Coe Lane and North Coe Lane after finding the body of a woman there on Sunday. The woman’s family made it clear Monday, they believe the father of the woman’s child is responsible.

Ansonia Police say 20-year-old Rosali Acquefreda is dead after being found injured on the corner of Coe and North Coe Lanes Sunday afternoon.

At a Monday afternoon news conference, Ansonia PD said Acquefreda was stabbed to death.

At that news conference, Acquefreda’s family and a man who identified himself as her boyfriend made it clear they believe the father of her child is the person who killed her.

Christian Federici, Acquefreda’s boyfriend said of the young mother, “She was a good person.”

Her family with an emotion plea.

Joseph Acquefredo, the victim’s brother: “I just want justice for my sister. That was my best friend, that was my sister, that was everything. I want justice for her.”

Acquefreda’s family and friends gathered Monday night for a vigil in her honor. Her family making an explosive accusation.

“She didn’t deserve this. A man took advantage of her, a man that was the father of her child. I just wanna say, I love you, Rose,” Federici said.

Acquefreda’s father, Joseph saying, “She was a wonderful daughter, very caring. She’d give you the shirt off her back if she could. She was always a giver, never a taker.”

Police said, Sunday they were originally called to what appeared to be an accident involving a motor vehicle and pedestrian, but when they arrived, Acquefreda’s injuries were more consistent with an assault. She was rushed to the hospital where she later died.

LT. Patrick Lynch of Ansonia Police said Monday, “We are working on building a case identifying the suspect to make an arrest.”

Police say they are looking for a male and a female witness seen in the area on a motorcycle around the time of the stabbing.

A black Pontiac Aztek motor vehicle involved in this incident has been located and is in the custody of the Ansonia Police Department.

Ansonia PD is investigating the incident and asks anyone with information to contact them.

WEB EXTRA: Ansonia police identify woman killed Sunday night