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Man Admits He Beheaded His Girlfriend Because She Tried to Break Up with Him While on Their Way to Court: Prosecutors


America Thayer (left) is seen in a Facebook image. Alexis Saborit (right) is seen in a Scott County, Minn. jail booking photo.

A criminal complaint filed Friday in the alleged decapitation murder of a Minnesota woman says that the defendant confessed to the police that he beheaded his girlfriend because she tried to break up with him while traveling with him to a court appearance in an earlier case.

According to the police and prosecutors, America Mafalda Thayer, 55, of Shakopee, died Wednesday afternoon when her boyfriend, Alexis Saborit, 42, also of Shakopee, cut her head off with a knife and fled. The incident occurred around 2:30 p.m. and was recorded on video by at least one witness, the police confirmed earlier in the week.

Prosecutors filed a single charge of second-degree murder against Saborit on Friday in Scott County, Minn.

The eight-page charging document says a reporting party “observed a male throw a headless body out of a car at the intersection” of Fourth Avenue and Spencer Street. From the complaint:

Officers arrived at the scene and observed a female, naked from the waist up, lying with her feet towards the curb and her shoulders near an open car door. The woman had been decapitated and her head was lying approximately one foot away from her body. There were large amounts of blood on the ground and in the passenger side of the vehicle.

According to the criminal complaint, the victim’s vehicle was parked nearby.

The document continued by relating the story of the killing as given to the police by several witnesses.

Witness 1 stated he was driving westbound on 4th Avenue and stopped at the intersection with Spencer Street. Witness 1 saw a dark colored vehicle stop heading southbound. Witness 1 saw the driver of the vehicle by the passenger side swinging an object in the air and bringing it downward repeatedly. Witness 1 said the object was black and looked like a police baton. Witness 1 continued on 4th Avenue and returned southbound on Spencer Street where he saw a body lying on the ground.

Witness 2 stated she was driving southbound on Spencer Street. There was a vehicle several cars in front of her that she thought was maybe having mechanical issues. A vehicle in front of her drove around the stopped vehicle and another made a U-turn. Witness 2 could then see the driver of the stopped vehicle standing by the passenger side making a hitting motion. The driver threw an unknown object into a yard and then dragged something out of the car that looked like a body. The driver then grabbed an object which Witness 2 eventually realized was a human head with blonde hair. Witness 2 could see blood on the head. Witness 2 said the driver left, walking eastbound down the alley.

An image shows victim America Thayer standing behind what appears to be a checkout counter at a store.

America Thayer. (Image via the victim’s Facebook page.)

The criminal complaint also notes that a witness recorded a cell phone video of “part of the murder.” The brutally gruesome and disgustingly graphic video has been shared widely online — much to the irritation of the police. The complaint describes in summary fashion, however, what is sure to be Exhibit A at the defendant’s trial:

The video was taken from inside a residence. Through a window, the suspect can be seen pulling Victim’s body out of the vehicle. The suspect picks up Victim’s head and moves it away from the body. At the end of the video, the suspect is seen reaching into the back seat of the vehicle.

Officers located “an empty, black sheath that appeared to be for a machete-style knife” in a grassy area “a few feet from the crime scene,” the document goes on to indicate. And then they found a few pieces of other key evidence:

In an alley approximately one and a half blocks east of the crime scene, officers found a white shirt, white shoes, and a knife in a recycling bin. The white shoes and white shirt both appear to have blood-like substance on them.

According to the criminal complaint, both the victim and the defendant were known to the police.

Some officers at the crime scene were familiar with Victim and knew her to have a boyfriend—ALEXIS SABORIT, born 3/30/1979 and Defendant herein. The Defendant matched the description of the suspect.

During the search for the suspect, officers observed the Defendant in the area of Shenandoah Parkway and Highway 101. While officers waited for more backup to arrive, the Defendant appeared to notice them watching him. The Defendant changed course and walked north into the Murphy’s Landing parking lot. Officers approached the Defendant and took him into custody.

At the time, the Defendant was wearing black pants which appear to be the same as seen in the video taken at the crime scene. The red underneath his pants was determined to be shorts. The Defendant was wearing a black hoodie.

A third witness told the authorities that he was with both the victim and the defendant at a park about 15 minutes before the slaying occurred.

Witness 3 stated he was with Victim and the Defendant at Memorial Park around approximately 2:15 p.m. that day. He said Victim was trying to convince the Defendant to go to court, so he did not get into trouble. Witness 3 said Victim was upset that the Defendant may get into trouble for missing court, but things seemed fine between the two of them. Witness 3 mentioned that Victim told him the Defendant often carries a machete on him.

The defendant allegedly confessed to the police after they read him his rights. According to the complaint, Saborit said Thayer tried to dump him while he was on his way to to the courthouse for an earlier legal matter that is not fully described in the charging documents. And, despite his own legal history of abuse, Saborit tried to blame Thayer for abusing him. Again, from the court record:

In a post-Miranda statement, the Defendant stated that he and Victim had been dating for several years. The Defendant said they were together earlier in the day and went to the park. The Defendant said they were going to go to his court appearance together. On the way to court, Victim told the Defendant she wanted to get rid of the Defendant and end her relationship with him. The Defendant said he used a knife to kill Victim because she had “gone too far” in her abuse of him and in her comments about ending their relationship.

Another witness eventually came forward to help the police find the alleged murder weapon:

On July 29th, 2021, a known woman, Witness 4 herein, called to report that her dog had found a knife in a garden near the intersection of Spencer Street and 4th Avenue. Officers responded to the area and observed a black handle sticking up from the ground, concealed in a bush. The knife was almost entirely concealed and difficult to see. It appeared as though it had been plunged into the dirt somehow. The knife was a black machete with a partially serrated edge. The blade was covered with blood-like substance and there appeared to be strands of hair on the blade. The knife appears to fit the sheath found at the crime scene.

A second-degree murder conviction in Minnesota carries a possible prison sentence of up to 40 years.

[Image of America Thayer via Facebook, Alexis Saborit via Scott County, Minn. jail booking photo]

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Aaron Keller holds a juris doctor degree from the University of New Hampshire School of Law and a broadcast journalism degree from Syracuse University. He is a former anchor and executive producer for the Law&Crime Network and is now deputy editor-in-chief for the Law&Crime website. DISCLAIMER:  This website is for general informational purposes only. You should not rely on it for legal advice. Reading this site or interacting with the author via this site does not create an attorney-client relationship. This website is not a substitute for the advice of an attorney. Speak to a competent lawyer in your jurisdiction for legal advice and representation relevant to your situation.