This week, a man from Wasilla was taken into custody by Alaska State Troopers after he reportedly abandoned a teenage girl to perish on a snow-covered trail. Court documents state that a Wasilla man was detained after providing 16-year-old Alena Toennis lethal drugs.
Toennis was later discovered dead behind a storage facility close to Selden Road. For supplying the deadly narcotics, authorities accused 45-year-old Sean Mobley of second-degree murder, manslaughter, and felony drug crime.
Investigators found that Mobley intentionally gave Tonnis fentanyl and carfentanil even though he was aware that the medications had already resulted in another overdose. Charging documents say someone found Toennis’s body the next morning dressed only in shorts, a crop top, and a light jacket.
There were no signs of physical trauma on her body, but the state Medical Examiner ruled her death a drug overdose. The toxicology report shows she had methamphetamine and carfentanil, a synthetic opioid 10,000 times stronger than morphine, in her system.
Hypothermia worsened the situation, contributing to her tragic death, according to the autopsy results. Investigators say Toennis and a friend were driving around on November 14 searching for drugs before she contacted Mobley .
Surveillance footage and cell phone records placed Mobley near the snowy trail during Toennis’s final moments, directly contradicting his claim that she left with someone else. A social media plea from the family after Toennis’s death drew widespread attention, asking for details about her final hours.
Court records reveal Mobley had already sold powdered fentanyl to another person earlier that night who overdosed and required Narcan to survive. Despite being warned not to supply Tennis, Mobley allegedly gave her the deadly dose anyway.
During Thursday’s court hearing, Palmer Superior Judge Jonathan Woodman set Mobley’s bail at $750,000. Moberly remains in custody at the Mat-Su Pretrial Facility, awaiting further legal proceedings. This shocking case highlights the growing dangers synthetic opioids pose to Alaska’s youth and communities statewide.
