Karrie Neurauter, 20, has admitted driving her father to her mother's house and distracting her 14-year-old younger sister while he strangled his ex-wife.
Neurauter has pleaded guilty to second degree murder in a deal which will see her testify against her father, Lloyd Neurauter, 45, in exchange for a recommended sentence of 15 years to life.
The upstate New York uni student says she helped her dad make the scene look like her mum Michele, 46, had taken her own life, reports News.com.au.
Karrie Neurauter said she disconnected electronic devices in the home to hide his presence. Police say they had responded to multiple domestic violence calls from Michele Neurauter's residence in Corning, New York before her death.
Karrie Neurauter a computer engineering student at Rochester Institute of Technology in New York says her dad gave her an ultimatum in August — saying she could help him kill her mother or he would commit suicide.