The final sentence against Cody Arnold brought closure to a Jefferson County case that moved from a house call to a regional suspect search and then to court.
WEST JEFFERSON COUNTY, Texas — The legal end of the Katelynn Stone murder case came four years after deputies answered a possible homicide call on Kolbs Corner, with Cody Arnold receiving a 34-year prison sentence for a killing that prosecutors said grew from fear, secrecy and planning inside his home.
In one sense, the story is geographical before it is legal. It starts at a house in a rural stretch near Beaumont, widens into a search that reached Liberty Hill and other counties, and then contracts again into a courtroom where jurors decided Arnold’s punishment. Along the way, the names that fixed the case in public memory remained the same: Stone, the 16-year-old victim from Vidor; Arnold, the Beaumont man arrested at the scene; and Chelsea Shipp, the woman from Winnie who later admitted she shot Stone and received 40 years in prison. Arnold’s sentencing in March 2026 completed the last major unresolved chapter.
The first public description was stripped to essentials. On March 27, 2022, around 5 p.m., deputies said they were notified of a possible murder in the 14000 block of Kolb’s Corner. They arrived and found a 16-year-old female dead from a gunshot wound. Arnold, then 22, was arrested at the home and charged with murder. The next sheriff’s office update, issued March 29, added urgency and movement. A murder warrant had been issued for Shipp, then 24. Authorities said she was believed to be armed, named the 2017 white Dodge single-cab truck they said she was driving, and noted that she was known to frequent Galveston County, Chambers County and West Jefferson County. That notice turned a local homicide into an active hunt.
The search ended before dawn on March 31. Deputies, working with Liberty Hill police and the Williamson County Sheriff’s Office, arrested Shipp around 3:40 a.m. at a residence in Liberty Hill. In that same announcement, the sheriff’s office publicly identified the dead teen as Katelynn Nicole Stone of Vidor and said her family had been notified. Those official steps gave the case a clean procedural outline, but not yet a human explanation. That explanation came from later court reporting, which said Stone had been living with Arnold in March 2022 and that Arnold was also involved with Shipp. Prosecutors said Stone took a pregnancy test that came back positive, and that Arnold believed he was the father. The state said Shipp warned him that he was “going to get in trouble,” helping explain why prosecutors argued the pair decided Stone had to be killed.
Once the motive theory surfaced, the inside of the house became the focus. Prosecutors said Arnold and Shipp spent the weekend together there, talking about what they were going to do and using meth. Jimmy Hamm of the district attorney’s office told jurors they smoked meth the entire weekend to build up the courage to kill Stone. According to Arnold’s reported version of events, the shooting happened at about 2 p.m. on March 26, when he entered a room and saw Shipp aiming a gun at Stone as she slept. After the shot, he reportedly covered Stone’s head with a trash bag because he did not want to look at her. Separate local reporting later said the body was wrapped and left on the bed, with a shell casing on a pillow and a trash can nearby large enough to hold the body. Those details made the house itself part of the evidence story.
Then came the words that prosecutors said helped crack open the case. Witnesses told investigators Shipp had been speaking openly after the killing. One account said she told a woman, “I got rid of her.” Another said she declared, “I shot her,” while mimicking a gun with her fingers. A later report on her plea hearing said Shipp told investigators she killed Stone at Arnold’s request. When asked why, she allegedly answered, “Because one of them was sleeping around on the other.” Those remarks suggested jealousy as well as fear of legal consequences, and they left the public case file with a motive that was broad but not fully neat. Open reporting does not resolve every tension between those explanations, and some evidence remains outside public view.
The courtroom phase stretched the timeline far beyond the crime itself. Shipp’s case reached sentencing first. In June 2025, Judge John Stevens sentenced her to 40 years in prison after a plea agreement with the district attorney’s office. Arnold’s case proceeded to trial later, and a Jefferson County jury convicted him of murder in March 2026. During the punishment phase he faced as much as life in prison. Jurors instead set his sentence at 34 years. The result reflected a legal distinction that local officials had been building toward since the first week of the investigation: Shipp as the admitted shooter, Arnold as the man prosecutors said shared the planning, motive and concealment that made the crime murder rather than mere presence at the scene.
What remains after the sentencing is not just a completed prosecution but a stark map of how the case unfolded. A bedroom in West Jefferson County became a crime scene. A county warrant sent officers across Texas. Small local updates became a multi-year murder prosecution. And the record left behind still contains some unknowns, including whether any pregnancy was medically confirmed in public court and whether additional forensic details will ever be released. What is settled is narrower and more final: Katelynn Stone was killed at Arnold’s home in March 2022, Shipp admitted shooting her, and Arnold has now been sentenced for his role.
There is no major trial date left on the calendar. Any next development would likely come only if Arnold files an appeal or other post-conviction challenge to the March 2026 judgment.
Author note: Last updated April 17, 2026.