INDEPENDENCE — An Independence woman accused of killing her ex-husband planned out the attack Monday, according to court records.

Prosecutors allege 32-year-old Hillary Lee Hunziker told medics she bought a knife from Wal-Mart, wore special black boots so she could walk quietly and parked down the road from Jason Allen Hunziker’s home before entering through an unlocked door.

On the night before the attack, she also allegedly gave her mother instructions on what to do with her child should anything happen to her or her ex-husband, court records states.

Buchanan County sheriff’s deputies were alerted to the crime when her child called 911 and declared “My mom just stabbed my dad” about 4:34 a.m. Monday.

A second 911 call came moments later from Jason Hunziker.

“My wife just stabbed me and took my child,” he told dispatchers, according to court records.

When deputies arrived at his home at 1933 Henley Ave., they found Jason Hunziker dead in the bedroom with knife wounds to his left arm and left calf. There also was blood on the doorway and on the kitchen floor.

Hillary Hunziker wasn’t at the home, but authorities later located her in Robins in Linn County. She and the child were covered in blood, court records state, and she had a knife on her person and told officers there were other knives and razors on her person and in her vehicle, records state. Her vehicle also contained blood inside and out.

Buchanan County Attorney Shawn Harden said in court records Hillary Hunziker admitted to stabbing her ex-husband.

Hillary Hunziker had a cut on her own hand, and she was transported to a hospital for treatment, records state.

During the investigation, authorities discovered about 6 a.m. Monday, less than two hours after the attack, Hillary Hunziker called her mother and told her to carry out her instructions. When her mother asked what had happened, she responded only “artery.”

Hillary Hunziker was arrested for one count of first-degree murder and is currently in the Buchanan County Jail.

Hillary Hunziker was living in a mobile home on First Avenue in Independence at the time, according to court records. Earlier this year, she listed an address on Juniper Lane in Robins, records state.

The divorce proceedings began in 2011, records state.

In the past year Hillary Hunziker had an earlier run-in with the law and was injured in a vehicle accident.

On Jan. 12, she allegedly used a board to break a large picture window and a door at an Elberon house when she went to retrieve a bicycle from a porch, records state. Less than an hour later, authorities in neighboring Benton County pulled her over for going 83 mph in a 55 mph zone on 73rd Street. She smelled of alcohol, had dilated pupils and failed field sobriety tests, and breath test showed a blood alcohol level of .162, court records state.

She was arrested for misdemeanor third-degree criminal mischief for the Elberon incident and first-offense operating while intoxicated.

On April 1, Hillary Hunziker was a passenger on a motorcycle that crashed on Wapsie Access Boulevard just north of Independence. She was taken to Buchanan County Health Center and later flown to the University of Iowa Hospitals and Clinics in Iowa City for further treatment. The motorcycle driver, Robert James Turner of Fayette, was arrested for operating while intoxicated and has since pleaded guilty.

Later in April, Hillary Hunziker pleaded guilty to her own driving charge and was sentenced to a weekend OWI program or 48 hours in jail, court records state. She also pleaded guilty to breaking the window, and on Oct. 26 was sentenced to 180 days in jail suspended to self probation.

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