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Man Who Searched 'How To Make A Homemade Silencer' Gets Life For Missing Ex's Murder
Jesus Contreras Perez will spend the rest of his life in prison for the murder of his ex, Cassandra Ayon, who disappeared in October 2020.
A Wisconsin man has been sentenced to life without the possibility of parole for the murder of his child’s mother, whose body has yet to be found.
Jesus Contreras Perez, 42, will spend the rest of his life behind bars for the murder of his missing ex, Cassandra Ayon, according to CBS Wausau affiliate WSAW-TV. Perez — who shared a child with Ayon — was accused of stalking the then-27-year-old in the weeks and months leading up to Ayon’s 2020 disappearance, after she ended their relationship.
Authorities with the Clark County Sheriff’s Office responded to reports of a missing woman at around 12:40 p.m. on Oct. 4, 2020, according to the Wisconsin Department of Justice. Per a criminal complaint reviewed by Oxygen.com, investigators deduced she was last seen at around 3:45 a.m. on Oct. 3, after leaving her friend’s house in Unity — about 130 miles west of Green Bay.
Ayon’s mother and stepfather told investigators that Ayon and Perez shared a 7-year-old child and that their daughter and grandchild had moved across the street from them in Loyal — about 15 miles south of Unity — after the couple parted ways, just three weeks before Ayon's disappearance.
Her parents said that Ayon and Perez were in an on-and-off-again relationship, with some friends claiming she broke things off as far back as the summer of 2019.
On the weekend of Ayon’s disappearance — between Oct. 2 and 4 — her child had gone to stay with Perez for the first time since Ayon moved out.
Interviews with friends and family revealed that, on several occasions leading up to her disappearance, Perez had gone to Ayon's home, sometimes becoming physically aggressive when she refused to talk to him. One friend said she went for a walk with Ayon and that Perez was waiting in a strange car. He jumped out, bombarding Ayon with questions, and had raised his hand as though he was going to hit her.
About two weeks before Ayon’s disappearance, she sent pictures to her friends showing bruises around her eye and on her arms.
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On Sept. 18, 2020, Ayon and a male friend left their phones in the car when stopping at a local Kwik Trip convenience store. They reported their phones were gone when they returned and said that whoever stole them had used the man’s device to post photos on their social media.
Detectives later said they found evidence that Perez took down the male friend’s license plate and tried to learn where he lived. Some of Perez’s Google searches included “how to get address from license plate,” and digital data showed Perez tried searching the friend’s name through the Wisconsin DMV website.
Another one of Ayon’s male friends said Perez “freaked out” when he learned she was hanging out with friends of the opposite sex. The witness said he and Ayon went to a bar and, when he dropped Ayon off, Perez was waiting at her home.
“[Witness] stated that the defendant showed up with a knife and stated, ‘You and your f-----g boyfriends. They are probably all running a train on you. If I ever see them around you, they are going to get hurt, and so are you.’”
Ayon told several people that Perez would be to blame if anything ever happened to her.
She also told coworkers at Marathon Cheese that Perez said if she ever cheated on him, “he knew where to hide Ayon’s body so that no one would ever find it,” according to the criminal complaint.
On Sept. 26-27, 2020, Perez made several Google searches that raised red flags for investigators, including “how to make a homemade silencer,” “what a silencer really sounds like” and “testing a new silencer.” He also watched how-to videos on the subject.
In the hours leading up to Ayon’s disappearance a week later, friends said that she was “nervous” and “continually looked out the window while she was with them that night.”
Neither Cassandra Ayon nor her vehicle has ever been recovered.
In June 2021, Perez was officially charged with first-degree intentional homicide, hiding a corpse and stalking causing bodily harm. A Clark County jury found him guilty as charged in June of this year.
Ayon is described as being 5’4” and weighing about 185 pounds. She has black hair, brown eyes, and multiple tattoos, including a partial sleeve of roses on her right arm and shoulder, and a rose with a dove, a rosary and the word “Alberto” on her left forearm.
She was last known to be driving a black 2015 Chevrolet Impala with Wisconsin license plate number AHZ-2509.
Her family created the Facebook page “Missing Cassandra Ayon” to help raise awareness about her disappearance.
“Cassandra is still missing,” they posted Wednesday. “Please continue to share. She is someone’s mother, sister, daughter, friend. She deserves to be brought home.”
Anyone with information is urged to contact the Clark County Sheriff’s Office at 1-715-743-3157.
