Man admits to stabbing woman 15 times from behind while she was hiking alone in broad daylight

An Arizona man has admitted to unleashing a random and "vicious attack" on a woman who was hiking alone, stabbing her more than a dozen times from behind in broad daylight.

Zion Teasley, 25, pleaded guilty on Friday to first-degree murder for his 2023 attack on Lauren Heike, 29, on the Reach 11 trail in north Phoenix, according to court records.

As previously reported by Law&Crime, Teasley was facing the death penalty after Heike's body was discovered in a desert area behind a resident's home. Blood and personal items belonging to Heike were found scattered around the location, according to a probable cause affidavit.

"Based on the location of Lauren's property and the condition of her clothing, investigators believe it was possible she was chased through or over the barbed wire fence," police said. "Multiple apparent puncture wounds were observed on Lauren's back and chest."

The medical examiner found 15 stab wounds and also "numerous superficial abrasions." Heike also sustained defensive wounds to her hands and forearms.

According to police, Heike had planned to go hiking with a male friend, but that friend later could not reach her on the phone. He used an app to track her phone and learned it was in the area of 65th and Libby Streets, where the crime scene was found.

"Both Lauren and [the suspect] were observed walking towards a trail entrance located at 68th Street and Princess Drive," according to the affidavit. "Security cameras sparsely covered the trail itself. No one was observed following Lauren prior to entering this trail."

Surveillance video shows Heike heading west along the trail, toward where she was found dead. Teasley allegedly can be seen walking in the same direction before going out of view.

"The suspect ran after Lauren and then sprinted away before returning to the location where Lauren's body was found and climbing over the barbed wire," the affidavit said.

DNA on Heike's shoe was a match for Teasley, and his last known employer said Teasley was recently fired for being aggressive toward female co-workers, along with stealing merchandise. Management identified Teasley in a surveillance photo and said he was allegedly wearing clothes he had stolen from the store.

"Management stated he routinely carried a pocketknife and described it as a black plastic folding knife with an approximate blade size of three inches," police said. "This blade size is consistent with wounds discovered on Lauren's body during her autopsy."

After finding him, authorities took Teasley into custody and showed him a still picture from video surveillance of the suspect in the area of the murder, according to documents. Teasley identified himself as the person in the photograph and willingly spoke to police.

"During his interview, Zion spoke about his life growing up as a Christian and his internal struggle with his own sexuality," police said. "Zion was concerned about the salvation of his soul due to his thoughts."

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Teasley lived less than two miles away from the location of the murder. "When asked why police had arrested him, Zion stated, 'There's no freaking way I'm here for a sex crime. I haven't been with anyone for a long time,'" according to the affidavit.

Shown an aerial photograph of the area surrounding the murder, Teasley said he recognized the area and had passed it before.

"Zion stated he would routinely walk the area around his residence but refused to provide his route," according to the affidavit. "Zion would only say he would never take the same route."

Shown a photograph of the suspect, Teasley allegedly said, "That's me," then claimed he was not sure if it was him. Teasley was also shown a photograph of Heike.

"Zion recognized Lauren from the news and stated he wanted to look like her," according to the affidavit.

Teasley claimed to know she was attacked, but he "struggled to admit she was murdered," police said. He said he could not recall if he ever met her.

"I am definitely not the person who plans to kill another person," Teasley allegedly said, when asked if he planned to murder Heike. "If I was going to do something like that, it wouldn't be premeditated."

During Friday's plea hearing, prosecutors said that the death penalty had been taken off the table as part of Teasley's deal, local ABC affiliate KNXV reports. Charges of assault and burglary from another case were dismissed under the terms of the agreement, per KNXV.

Sentencing is set for Dec. 4. Teasley is facing up to life in prison.

"After 3½ incredibly long and painful years, our family supports the State's decision to enter into a plea agreement in Lauren's case," Heike's family told KNXV in a statement. "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. There is a tremendous sense of relief in knowing that we will be spared that additional trauma."

Alberto Luperon contributed to this report.