How the system Failed a Teenager and Led to her being killed by a Multiple Felon Gang Member
The police decisions, court actions, and warning signs that led to the murder of Hailey Nieto, and why it didn’t have to happen. This is what a family member told me.
Apr 13, 2026
The Moment It Was Already Too Late
On March 22, 2023, detectives came to the family home in Reno with the news that no one was prepared to hear. There was just the quiet authority of law enforcement at the door, with a notification that changed everything, and the collapse of any remaining uncertainty. Hailey Nieto’s body had been found near Cold Springs, north of Reno. It was the moment that the case became irreversible. By the time police arrived, the critical decisions had already been made, days, weeks, and even years earlier. The system had failed Hailey, and now the family had an answer.
How Did We Get Here?
This is not just a story about how Hailey Nieto was killed; it is a story about everything that happened before she died. The investigation did not begin at the moment of the shooting or the discovery of her body, but in the days, weeks, and years leading up to it, where decisions were made, warnings surfaced, and opportunities to intervene were missed.
The sequence that led to Hailey Nieto’s death unfolded over time. The early release of a felon with gang connections. A traffic stop where the wrong person was arrested. A pending court appearance that could lead to implications. A murder in a motel room. The disposal of a body in a remote area. A family being notified. Each step raises the same question: at what point could this outcome have been avoided?
Who Was Hailey Nieto
Hailey Nieto was 18 years old, a young mother of two small children, not from her killer, with no documented criminal history prior to the events that led to this case. She was described as someone who had grown up in Reno, with her parents and brother, before her life began to shift.
In the months leading up to her death, that stability fractured as she became involved with Todd Tonnochy, an older man with a long criminal record, creating a clear imbalance in age, experience, and control. We don’t know how she met Tonnochy, but it appears that he targeted her, groomed her, and controlled her.
Who Is Todd Tonnochy
Todd Tonnochy was nearly 40 years old at the time of Hailey Nieto’s death, with a documented history of gang connections and criminal activity, with dozens of felony arrests and convictions going back decades.
Court records and police reports show a pattern of prior arrests and convictions involving drugs, firearms, and supervision violations, including a 2020 Nevada arrest where he was found in possession of weapons, narcotics, and distribution materials.
Tonnochy has a long arrest record, which appears to have been ignored by the Reno police.
Tonnochy was a supervised witness in a federal case in the Northern District of California, where records indicate he testified in a broader gang prosecution tied to the “500 Block/C Street” group, an affiliation associated with Norteño gang activity.
He did not merely have a record, but one that showed escalation and persistence, establishing that his pattern of behavior had been evident long before the events of March 2023.
Link: Man arrested in Texas for the murder of 18-year-old Reno woman
A Texas State Trooper saw Tonnochy concealing contraband along a roadway in 2023. He was arrested on an outstanding warrant from the US Marshals and extradited to Reno.
The Release of Todd Tonnochy
The record shows that Todd Tonnochy had been in custody in Reno before the events of March 2023, after an arrest in 2020 for an incident involving drugs and firearms. He was held on a combination of state charges and federal supervision issues stemming from a prior case.
Here is what was found on Tonnochy when he was arrested in 2020. Police knew for years that he was a dangerous felon.
In 2021, he admitted to multiple violations and was sentenced to additional time, some of which ran concurrently with his Nevada custody.
According to the family, Tonnochy threatened to kill Nieto, sex-traffick her and her young daughters, and even counted down the days until he could harm her and the rest of the family, but no one monitored the calls from jail, and they got through.
By early 2023, a deal was made, and he was released. The question is whether the system accounted for the pattern of behavior or gave him special treatment due to his supervised witness status.
Tonnochy sent many messages from jail to Hailey that were neither monitored nor blocked and were intended to intimidate her.
The Traffic Stop and the Turning Point
The first critical turning point came with a traffic stop in early March 9, 2023, an encounter that, in hindsight, carries outsized weight.
According to reported accounts, police stopped a stolen vehicle in which both Hailey Nieto and Todd Tonnochy were present, with drugs and distribution-related items found inside. Both were detained at the scene.
The outcome, however, is where the case begins to fracture: Hailey, the 18-year-old with no prior record, was arrested, while Tonnochy, a significantly older individual with a documented criminal history, was released.
Link: Reno man sentenced to life in prison for death of 18-year-old Hailey Nieto
Tonnochy was convicted and sentenced in a Washoe Court in December, 2024.
That decision now sits at the center of a difficult question: why was the younger, less experienced individual treated as the primary offender, while the repeat offender was not, and how did that moment alter everything that followed?
What Police Saw, and What They Didn’t Act On
The scene involved the kind of context that, in other cases, would raise questions about coercion, control, or exploitation.
Link: Family of Hailey Nieto files lawsuit against Siegel Suites, Smart Systems & WCSO
The Nieto family filed a lawsuit alleging that Siegel failed to detect trafficking, and the jail system allowed Tonnochy to threaten Hailey using their systems.
Accounts referencing body-camera footage suggest officers may have made comments such as “keep it clean,” a phrase that implies an effort to simplify the situation rather than fully explore it, by arresting Hailey instead of Tonnochy.
The question is whether the possibility of trafficking or coercion was evaluated, and whether the discretion exercised at the scene reflected a missed opportunity to recognize the dynamics at play and to do the right thing.
Hailey was arrested instead of Tonnochy, apparently because the police took the easy way out.
The Immediate Consequence of That Decision
The police decision to arrest Hailey shifted both the legal and personal dynamics between Hailey Nieto and Todd Tonnochy.
After her arrest, Hailey now faced a criminal case, with her testimony potentially implicating Tonnochy.
He likely perceived her as a potential liability, depending on what she knew or might disclose.
It is clear that the arrest altered the trajectory of their relationship in ways that would influence Tonnochy.
Link: Washoe County judge dismisses lawsuit over slain Reno woman, citing wrong defendant named
A Washoe County judge dismissed most of the lawsuit on technical grounds, but some claims have survived.
The Timeline After the Stop
Hailey Nieto now faced a court date, requiring her to appear and account for what happened.
According to the record, the court appearance was scheduled just days before her death. During that same period, Todd Tonnochy remained free and in contact with her.
The question is whether there were additional opportunities to intervene: moments when prior history, pending charges, or evolving circumstances could have prompted a different response.
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The Murder that Could Have Been Prevented
On March 22, 2023, Hailey Nieto was shot and killed. According to prosecutors, she was with Todd Tonnochy in a motel room.
Surveillance evidence placed them together shortly before the gunshot, and subsequent evidence showed efforts to conceal the crime, including the movement and disposal of her body in a remote area near Cold Springs.
Tonnochy was subsequently arrested and charged, and later convicted, in connection with her death. The facts of the killing were established in court. But while the case resolves how she died, it does not answer the larger question of how the situation reached that point.
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The Pattern Behind the Outcome
Step back, and a pattern takes shape. There is a known offender: a history of arrests, supervision, and release cycles that did not result in sustained incarceration.
There is the role of police discretion, most visibly at the traffic stop, where decisions about who to arrest and how to charge shaped what came next.
There is fragmentation across the system, law enforcement, courts, and supervision operating in separate lanes, each making decisions without a unified response to cumulative risk.
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Washoe County has a history of protecting insiders and denying justice to victims.
Domestic Violence & Trafficking Signals
The circumstances in this case reflect patterns that are documented in domestic violence and trafficking contexts, where warning signs often appear in fragments rather than as a single, clearly identifiable event.
It is not uncommon for victims, especially young women connected to older partners with criminal histories, to come into contact with law enforcement in situations involving drugs, property crimes, or disorder, without the underlying dynamics of coercion or control being fully recognized.
Victims may be charged with offenses connected to the very conduct they are being compelled to engage in.
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Reno and Washoe have a history of failing to stop trafficking while claiming to be doing the right thing.
Closing — Return to the Beginning
In the end, the story returns to where it began, with the moment when detectives came to the door and told the family that Hailey Nieto was gone. By then, the outcome was final.
But her story does not begin with that moment, or even with the murder itself. It begins in a series of decisions, each made within the boundaries of policy, procedure, or discretion, but together forming a path that cannot be undone.
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