Jurors convicted Miles Otis Miller after prosecutors linked his writings and conduct after his mother’s death to a planned killing and cover-up.
MISSOULA, Mont. — When Miles Otis Miller called 911 to report finding his mother bloody and unresponsive inside their Missoula home, investigators initially heard the story of a son discovering a death. What police later found inside the house helped turn that caller into the focus of a homicide case.
More than three years later, the collection of handwritten notes, discarded items, blood evidence and statements that followed that emergency call helped underpin a conviction and a life sentence. Miller, now 24, was sentenced Aug. 27 to life in prison with the possibility of parole after 40 years for killing 68-year-old Taeko “Teri” Miller in May 2023 and tampering with physical evidence. A jury convicted him on both charges in September 2025. The case became notable not simply for the violence of the killing, but for prosecutors’ contention that writings found in the home documented plans for both the death and the story Miller intended to tell afterward.
Among the material presented during the prosecution was a notebook entry containing the words “Cover up, no regrets” and a proposed explanation involving a break-in next door. Charging documents described additional handwritten statements about acting confused, avoiding specific answers and appearing sad. Investigators also reported finding a message saying that his mother was trying to destroy the family and other writings about her power. At trial, prosecutors argued that the documents were not disconnected private thoughts. They said the words matched what Miller did after the killing: report his mother’s body, deny knowledge of what happened and distance himself from the violence inside the house.
The first public account from Miller came through his own emergency call on May 13, 2023. He told dispatchers that his mother was unconscious, covered in blood and not breathing at the bottom of the basement stairs. Firefighters who arrived at the South Avenue property determined she was dead. Police then observed extensive blood at the scene, along with a bucket that contained vinegar and other cleaning supplies and an unused mop positioned near the body. To investigators, those items raised the possibility that somebody had begun preparing to clean the scene or remove evidence, even though the mop had not been used.
Miller told police that he had last seen his mother around 7 p.m. the previous evening. He said he had slept overnight in the home, awakened during the morning, gone back to sleep and found her around noon. He also told investigators that he slept with headphones and a fan and had difficulty hearing. Officers noticed scratches on his hands, which they described as red or swollen. Miller said he had a skin condition that caused his hands to crack and bleed. When a detective told him the death was being investigated as a homicide, Miller expressed concern about contradicting his earlier statements and asked for a lawyer, ending the interview.
The subsequent searches broadened the case well beyond the initial 911 account. Detectives reported finding blood-stained clothing and suspected human tissue in garbage bags, along with a bloody bathmat and sandals. A portion of carpet with possible blood staining appeared to correspond to a section that had been cut away near the area where Teri Miller was found. Investigators also found an ivory-handled serrated knife in a dishwasher. The prosecution later presented additional evidence involving concealed weapons and blood evidence during the trial. Individually, many of those discoveries became subjects of dispute. Collectively, prosecutors argued, they showed an effort to remove or hide traces of the killing.
The number of wounds was described differently as the case developed. The initial charging documents said a medical examination found roughly 30 stab wounds from a sharp object, along with injuries to Teri Miller’s hands and fingers. Later court proceedings described more extensive injuries. Defense attorneys referred during post-trial arguments to more than 63 lacerations, while Judge Leslie Halligan referred at sentencing to Miller stabbing his mother 60 times. Some subsequent local reporting has described another count. The later figures did not erase the earlier charging-document description; rather, they reflect how the injuries were characterized at different stages of the investigation, trial and sentencing.
The handwritten material grew more important when the case went before jurors in September 2025. Prosecutors argued that Miller had thought through not only how a killing could occur but also who among his relatives might become the target. At sentencing, Halligan summarized evidence that Miller considered killing his mother, his sister or his sister’s husband and weighed different methods and perceived advantages before settling on his mother. Prosecutors presented the writings as evidence of deliberation and intent. Their case also alleged that frustration involving inheritance money and lingering resentment toward Teri Miller contributed to the motive.
The defense urged jurors to resist treating written thoughts as an admission of murder. Attorneys characterized the notes as speculative material and argued that prosecutors had selected statements that fit their theory while ignoring weaknesses in the physical evidence. They challenged crime-scene procedures, questioned the timing of evidence submissions and said investigators failed to establish a reliable sequence for the attack. Defense lawyers also argued that DNA testing did not definitively identify Miller as the person who inflicted the fatal injuries. The prosecution countered that the case did not depend on a single note, test result or object but on the combined weight of hundreds of pieces of evidence.
Jurors accepted the prosecution’s case. After the three-week trial and deliberations that began Sept. 25, 2025, the panel returned unanimous guilty verdicts the next day on deliberate homicide and evidence tampering. The conviction moved the notebook entries from disputed trial evidence into the factual record supporting the verdict, though Miller’s attorneys continued challenging the outcome. In May 2026, they asked Halligan for a new trial, citing what they said were problems with the evidence, a juror issue, prosecutorial conduct and the handling of mental-health-related arguments. They also emphasized the limited injuries observed on Miller and forensic evidence they believed undercut the prosecution’s theory.
Missoula County Attorney Matt Jennings opposed that effort. He said the state had presented more than 410 pieces of evidence, pointing to Miller’s journals, a suspected weapon and blood evidence from a shower among the material supporting the verdict. Jennings denied accusations of prosecutorial misconduct and disputed claims that jurors had been improperly influenced. The post-trial challenge therefore repeated a central division that had defined the trial: the defense saw an investigation containing gaps and ambiguous evidence, while prosecutors saw many separate pieces that converged on one explanation.
That division carried into sentencing, but the question before the court had changed from guilt to punishment. Jennings argued for a sentence that recognized the planning and danger he believed the evidence demonstrated. He told the court that Miller had hidden and retained the weapon and characterized that conduct as evidence of what he called an “inherent violence.” Defense attorney Jami Rebsom instead emphasized Miller’s age when the crime occurred, his desire to work in prison and the possibility that he could mature and eventually return to society after a lengthy term.
Halligan imposed life imprisonment but allowed parole eligibility after 40 years. She also ordered $2,070 in restitution for funeral expenses, waived other court costs and credited Miller with 1,203 days already served. The judge said the punishment was intended to protect the public while recognizing that rehabilitation could remain possible over time. Miller spoke little through much of the proceedings. Family members and prosecutors interpreted that silence as a lack of remorse, but the defense said he was preserving his innocence and protecting rights that could be important in an appeal.
The sentencing leaves Miller facing decades in prison while his legal options move beyond the jury trial that established his guilt. The 911 call that opened the investigation, the material police found around the home and the writings prosecutors described as plans for an alibi remain central to the public record of the case. Miller cannot seek parole until the court’s 40-year restriction has been satisfied, and eligibility at that point would not guarantee that he is released.
Author note: Last updated October 17, 2026.