Thanks to a plea agreement, Alonzo Brown avoided death and life without parole but received a sentence that delays parole until 2078.
LAS VEGAS, Nev. — A plea agreement ended the capital case against Alonzo Brown before trial, sending him to prison for 56 years to life for three Las Vegas murders committed when he was 18.
Clark County prosecutors once planned to seek the death penalty if a jury convicted Brown. The agreement changed the stakes by removing death and life without parole as possible punishments. In exchange, Brown pleaded guilty to three counts of first-degree murder in the 2022 killings of Tevin Alhashemi, 26, Paul Viana, 62, and Josue Chaparro-Montalvo, 36.
The legal outcome was severe even without a death sentence. Clark County District Court Judge Michelle Leavitt sentenced Brown on April 15 to 56 years to life. With credit for time served, officials still set his parole eligibility in 2078. Brown was 22 at sentencing, meaning he would be in his 70s before he can first seek release. The sentence closed the trial-level case nearly four years after the killings and after earlier proceedings that included questions about Brown’s competency. It also spared the victims’ families a trial while leaving the facts of the plea on the record.
The criminal charges covered three shootings across six months. The first happened Jan. 18, 2022, outside an east Las Vegas apartment complex. Court reporting identified the victim as Alhashemi and said he knew Brown. Prosecutors said the two had disputed a stolen gun. The second killing happened May 4, 2022, when Viana was shot while waiting at a bus stop. The third happened in June 2022, when Chaparro-Montalvo was killed while walking home from a convenience store. Prosecutors said Viana and Chaparro-Montalvo were strangers to Brown, which made the case different from a single dispute between people who knew each other.
Evidence described by police and prosecutors helped explain why the case became a possible capital prosecution. Investigators said surveillance footage showed a suspect appearing to stalk a victim before one of the shootings. Witnesses in the Chaparro-Montalvo case gave a description that later became important when police reviewed video connected to a hit-and-run crash involving Brown. Officers noticed clothing similar to what witnesses had described, and the review helped connect Brown to the June killing. Investigators then looked across the earlier cases, including the bus stop shooting and the January homicide, as they built one prosecution.
At sentencing, Clark County Chief Deputy District Attorney Marc DiGiacomo described the conduct in stark terms. He said Brown followed Viana at the bus stop before killing him and told the court that Brown “just decided he was going to become a serial killer.” That description echoed police concerns from 2022, when Las Vegas Metropolitan Police Department Capt. Dori Koren said surveillance footage appeared to show a suspect stalking a victim. Koren said then that the killing appeared random and that investigators did not see an apparent motive. Those statements became central to the prosecution’s picture of Brown as a person who targeted strangers in public places.
Brown had offered a different public account after his arrest. In a 2022 interview, he denied being responsible and rejected the serial killer label. He said an ordinary 18-year-old would not wake up and go on a killing spree. He also said he was a young man trying to figure out life. By the time of sentencing, however, Brown had admitted guilt through the plea. In court, he offered condolences to the victims’ families. “First, I’d like to express my condolences to the family,” Brown said before the sentence. He said he could not imagine what they were going through.
The plea deal carried practical consequences for both sides. For prosecutors, it guaranteed murder convictions and a life sentence without the risk and delay of trial. It also avoided years of litigation that often follows a death sentence. For Brown, it removed the two harshest sentencing outcomes while still leaving him with a minimum term longer than many natural life spans. For the families, it brought a final judgment without requiring them to hear a trial presentation of the killings. The agreement did not make the case less serious. It only changed how the punishment would be imposed.
The public settings of the killings remained a major part of the court’s record. Viana was waiting for a bus when he was shot. Chaparro-Montalvo had gone to a convenience store and was walking home. Alhashemi was outside an apartment complex. Those ordinary places gave the case its wider impact because they were not private scenes hidden from daily life. Prosecutors said Brown’s conduct showed planning and movement from place to place rather than one sudden act. The investigation turned city blocks, transit space, storefront video and witness accounts into evidence in a triple-murder case.
Some questions did not receive a full public airing because the case ended with a plea. The motive for the stranger killings remains unclear in the public record. Prosecutors said Brown had no known connection to Viana or Chaparro-Montalvo. Police officials said early in the case that they did not see an apparent motive from the evidence they had reviewed. What is now settled is the legal result. Brown stands convicted of three first-degree murders, and the sentence keeps him in prison until at least 2078 unless a later court action changes the judgment.
The case now leaves the courthouse and moves into the long term of the prison system. Brown has been sentenced, the death penalty phase that once loomed will not happen, and the next scheduled milestone is his first possible parole date in 2078.
Author note: Last updated May 8, 2026.