Cassandra Ayon was last seen leaving a friend’s house in the Unity, Wisconsin area at approximately 3:45am on October 3rd, 2020.
She had recently moved into a home across the street from her parents. Her mother last saw Cassandra on October 2nd, 2020 when they had lunch together at home. On October 4th, a friend stopped by Cassandra’s mother’s home looking for her as he, Cassandra, and another friend were supposed to go shopping on October 3rd and Cassandra never contacted them.
Cassandra failed to show up for work on October 5th, 2020 and has not returned home. Neither Cassandra or her car have ever been found.
Cassandra is a Hispanic woman, 5’4”, and 185 pounds. She has black hair and brown eyes. Her ears are pierced and she has tattoos pictured below - a right shoulder piece tattoo of roses, a rose, rosary, and a dove on her left forearm, and “Alberto” tattooed on one of her arms:
She may also go by “Cassy.”
She was last seen wearing a black, long-sleeve shirt, blue jeans, and brown boots. Below is an image of her in this outfit:
She drives a black 2015 Chevrolet Impala sedan with black rims. It has a Wisconsin license plate ‘AHZ-2509’ that expires in 2021.
Prior to her disappearance, she had been seeing a man named Contreras Perez. They had a child together. She had told friends that she broke up with Contreras because he was abusive and cheated on her. Cassandra’s friend saw bruises on her wrist and arm and that Cassandra told her that she was at a tavern with two men and Contreras found out about it. He “freaked out” and threatened to hurt her if she was with them again.
Contreras had been following her from work to friends’ houses and Cassandra said that if anything happened to her, Contreras would be the one who did it. He also said to her that, if she cheated on him, he knew where to hide her body so no one would ever find it.
There is video footage from a parking lot where Cassandra worked in Marathon City from October 2nd of Cassandra in the parking lot. The video shows a man who looks like Contreras Perez get out of a red SUV and get into Cassandra’s vehicle when she left work. The man then exits the vehicle and leaves in the SUV. The vehicle circles the parking lot and then leaves. Four hours later, the footage shows a man walking along a sidewalk and into the parking lot, looks for Cassandra’s car and then looks at a cellphone.
Investigators tracked the locations of Cassandra’s and Contreras’ cell phones on the date of her disappearance and it shows they were in the same areas. Contreras later reported his cell phone missing. They also found that his Google search history for the dates of September 26 and 27, 2020 showed searches for things such as "how to make a homemade silencer", "building a fuel filter suppressor", and "homemade suppressor demo for .30-06".
In May, Contreras was charged with stalking resulting in bodily harm. A murder charge was later filed.
There has been no bank activity on Cassandra’s accounts. There are no records indicating that she left the United States and she does not have a passport. The last time she used social media was October 3rd.
There was a trial in June of 2022 that lasted five days, and featured over 100 witnesses. Jurors quickly returned of guilty on all three counts. On September 12th, 2022 Jackson County Judge Daniel Diehn, acting as a substitute judge in the Clark County case, said Jesus Contreras Perez showed no remorse during the trial or during sentencing. Contrerez Perez was sentenced to life in prison without the possibility of applying for release.
Despite the conviction, Cassandra still has not been found and her family and loved ones are still looking for answers.
Cassandra was 27 years old when she went missing. She would be 29 years old today.
Any leads or information should be directed to:
Clark County Sheriff’s Office
Detective Scott Klueckmann
You can find more on NamUs:
WSAW-TV - Man to be charged with missing woman, Cassandra Ayon’s murder
Marshfield News Herald - Clark County DA files homicide charge against Wausau man in connection to Loyal woman’s disappearance
Mosinee man convicted of homicide in Cassandra Ayon case
Mosinee man sentenced to life in prison in death of missing Clark County woman Cassandra Ayon
Wisconsin Clearinghouse for Missing & Exploited Children & Adults