FORT WAYNE, Ind. (WANE) — The fatal stabbing of a woman Tuesday was the result of a fight between an ex and a new girlfriend, court records show.

Alisha R. Lampkin is charged with Murder in the stabbing death of 25-year-old Tonisha T. Richardson at a home in the 4700 block of Jason Drive, in the Shoaff Park Villas complex off Reed Road.

Alisha Lampkin provided by Allen County Sheriff’s Department

Police and medics were called to the villa around 1 p.m. for an unknown problem. Officers arrived and found Richardson down on the ground, with someone performing CPR on her.

Medics took her to a local hospital, where she died of a stab wound to the neck. The Allen County Coroner’s Office ruled her death a homicide.

Police found a broken knife handle and a blade at the scene, a probable cause affidavit said.

A man at the scene told police that his “baby momma” – identified as Lampkin – stabbed his girlfriend Richardson. Police took Lampkin in for an interview.

Lampkin told police she went to the home and knocked on the door, and Richardson came outside and the two got into a fight, the affidavit said. Lampkin said Richardson had a knife and she was trying to slash her tires, but the fight ended and Lampkin left.

Later, though, Lampkin admitted the knife was hers. She explained that Richardson came out of the home “ready to fight,” and she “got scared” when she came to hit her so she stabbed her, the affidavit said.

Richardson’s boyfriend told police that Lampkin had come to the home around noon that day, and later text: “Come outside or I’m popping her tires. All 4.” The man said he warned Richardson not to go outside, but he went to take a shower and later saw her go outside.

The affidavit said “he hurried up and went outside to try and prevent any kind of fight that was going to occur,” and said “he did not think Tonisha was outside any longer than 3 seconds before he got outside.”

The man said the women “wrapped up” and no punches were thrown, but they separated and he noticed “all the blood,” the affidavit said.

Lampkin appeared in Allen Superior Court Wednesday morning. She’s due back in court Monday.