PHOENIX — More than three years after a young woman was stabbed to death while hiking alone on a north Phoenix trail, the man accused of killing her has admitted to the crime. Zion William Teasley, 25, pleaded guilty Oct. 2 to first-degree murder in the April 2023 death of Lauren Heike, 29, according to court records.
The Short Version
- Guilty plea Oct. 2 — Zion William Teasley, 25, pleaded guilty to first-degree murder in the 2023 stabbing death of hiker Lauren Heike, 29, according to court records cited by AZCentral.
- The attack — Heike was found with 15 stab wounds near a north Phoenix trail in April 2023; DNA on her shoe matched Teasley, authorities said.
- No death penalty — The plea deal takes the death penalty off the table. Teasley will be sentenced in December and faces life in prison.
- Other charges resolved — Teasley also pleaded guilty to sexual exploitation of a minor in a 2019 case, while January 2020 assault and burglary charges were dismissed.
A plea more than three years later
Heike was hiking on April 28, 2023, on a desert trail near East Libby Street and North 65th Place in north Phoenix, according to AZCentral. Phoenix police found her just before 11 a.m. on April 29, 2023, in a desert area near a neighborhood in the vicinity of 64th Street and Mayo Boulevard. A resident phoned 911 after discovering an injured woman behind her home, and Heike was identified by police two days later.
She had been stabbed 15 times, according to FOX 10 Phoenix. A neighborhood resident told the station that his wife discovered Heike’s body while walking their dog. The couple knew Heike as a regular hiker on the trail; she lived in a nearby apartment complex.
Under the plea deal, prosecutors agreed to drop their push for the death penalty, and Teasley will spend the rest of his life in prison, according to the New York Post. Heike’s family said it supported the plea agreement because it spares them a trial.
“After 3½ incredibly long and painful years, our family supports the State’s decision to enter into a plea agreement in Lauren’s case. This means we will not have to endure a trial or sit in a courtroom and hear every painful detail of the crime that took Lauren from us,” the family told ABC 15, via the New York Post. “While no sentence will ever bring Lauren back, we are relieved knowing that he will never be released,” they added. “He will never again have the opportunity to harm another person or cause another family to experience the unimaginable grief and trauma that ours has endured.”

The attack on the trail
Investigators said Heike, a 29-year-old beauty technician, appeared to have been targeted at random while walking alone in broad daylight. Police said surveillance footage showed Heike heading toward the trail shortly before Teasley was seen walking in the same direction, and that Teasley then ran after her, according to the Daily Crime, citing court records. She was chased over or through a barbed-wire fence during the attack, and the medical examiner found defensive wounds on her hands and forearms, along with stab wounds to her chest and back.
Teasley did not know Heike, police said. He lived near the trail, about a mile from where she was found, according to FOX 10 and the New York Post.
When Teasley was first interviewed by police, he denied having seen Heike anywhere but on the news — but told officers, “That’s what I would want to look like,” according to the New York Post. Before the killing, Teasley had written in his diary that he was “battling with my gender identity and sexuality,” which he believed conflicted with his Christian faith, according to a 400-page police file on the killing obtained by ABC 15 last year. “I want to live a life of serving god, but how can I with these and other sins in the way,” he wrote. His attorney referred to him as “she” in court, according to the New York Post.
Teasley entered U.S. Marine Corps recruit training in March 2019 but left three months later before completing boot camp, according to the New York Post, which said the military cited privacy reasons for releasing no further details about his service.
How investigators found him
The break in the case came from DNA: investigators said DNA recovered from Heike’s shoe was matched to Teasley through a criminal database, according to Oxygen, which reviewed court records. Teasley had been on probation at the time after a prison term for armed robbery and other offenses, according to the New York Post.
Police also used surveillance footage, cellphone location data, and other forensic evidence to link him to the crime. Cellphone location data matched surveillance footage showing Teasley running from the trail around the time Heike was attacked, authorities said, according to FOX 10.
According to court records cited by FOX 10, a former employer identified Teasley in surveillance video and told police he had recently been fired after behaving aggressively toward female coworkers and stealing merchandise — clothing that matched what the killer wore. Police said Teasley routinely carried a three-inch pocketknife, which they said matched the wounds on Heike’s body.
When police asked Teasley whether he had planned to kill Heike, he said, “I am definitely not the person who plans to kill another person … If I was going to do something like that, it wouldn’t be premeditated,” according to FOX 10. He told detectives he recognized Heike from the news but said he could not recall whether he had met her in person.

What the plea resolves
The guilty plea to first-degree murder was entered Oct. 2, according to court records cited by AZCentral. On the same day, Teasley also pleaded guilty to sexual exploitation of a minor in a case from March 2019 involving the possession of child pornography, according to AZCentral and FOX 10.
Also on Oct. 2, prosecutors dismissed a pair of January 2020 felony charges — aggravated assault with a deadly weapon and first-degree burglary — according to court records cited by AZCentral. A 2020 burglary charge was dismissed as part of the plea, FOX 10 said.
Teasley will be sentenced in December and could face life behind bars, according to FOX 10. The motive in Heike’s death remains unknown.

The case drew sustained attention in the Valley because Heike appeared to have been attacked at random in daylight on a community trail — the kind of place neighbors used every day. With the plea, her family avoids a trial; the sentencing in December will close the criminal case. More Arizona coverage at Previously’s Arizona desk, and more crime coverage at the Caleb Flynn murder case, the East Rochelle case, and the news hub.
Sources
- AZCentral, “Lauren Heike’s accused killer pleads guilty to 2023 Phoenix stabbing”, Oct 3 2026
- New York Post, “Trans killer blames transition for stabbing hiker 15 times on trail: Victim was ‘what I want to look like’”, Oct 6 2026
- FOX 10 Phoenix, “Zion Teasley pleads guilty to 2023 murder of Lauren Heike on Phoenix trail”, Oct 2026
- Oxygen, “Zion Teasley Pleads Guilty to Stabbing Lauren Heike 15 Times in Brutal Murder on Phoenix Trail”, Oct 2026
