CASE: 9-Year-Old Girl Disappears After Playdate with Next Door Neighbor
CASE FILE: THE ELIZABETH OLTON HOMICIDE INVESTIGATION
9-Year-Old Girl Disappears After Playdate With Next Door Neighbor: The St. Martins Case That Shocked Missouri
Child Murder Investigation Report
Narrative by Detective Brian Coldwel
Callaway County Sheriff’s Office – Major Crimes Division, Missouri
PROLOGUE – THE PLAYDATE THAT ENDED IN A CHILD’S DEATH
Some missing child cases begin with a stranger.
Others begin with someone who was already welcomed inside the family’s life.
On October 21, 2009, nine-year-old Elizabeth Olton left her home in St. Martins, Missouri, for what should have been an ordinary afternoon.
She was going to visit her friend Emma Bamante, a girl who lived only a few houses away.
The neighborhood was familiar.
The families knew each other.
The children had played together before.
No one imagined that a simple playdate would become one of the most disturbing child murder investigations in the state.
That evening, Elizabeth did not return home.
At first, her disappearance seemed like a frightening accident.
Maybe she had gotten lost in the woods.
Maybe she had wandered away.
Maybe something happened while she was outside.
But as the hours passed, investigators discovered that the last person known to have seen Elizabeth was not a stranger.
It was Emma’s older sister:
15-year-old Alyssa Bustamante.
A massive search began.
Hundreds of volunteers searched through forests, fields, and surrounding areas during a night of heavy rain and dangerous weather.
But Elizabeth was nowhere to be found.
Then investigators searched Alyssa’s bedroom.
Behind the door of a teenager’s room, they discovered writings that changed the entire case.
A journal entry appeared to describe a murder.
It contained words investigators believed were a confession.
The investigation quickly shifted from a missing child case to a homicide investigation.
Detectives uncovered evidence suggesting the crime had been planned:
A hidden knife
A freshly dug rectangular hole in the woods
A disturbing diary entry
Statements from Alyssa herself
The teenager who appeared to be an ordinary student had been hiding a disturbing inner world.
The case became a painful examination of:
A child’s death
A teenager’s violent act
Mental health struggles
Family instability
The question of whether a young offender can truly change
For Elizabeth Olton’s family, the most important question remained:
Why did a nine-year-old girl who simply went to play with a friend never come home?
CHAPTER 1 – THE QUIET COMMUNITY OF ST. MARTINS
St. Martins, Missouri, was a small and peaceful community.
Neighbors knew each other.
Children played outside.
Families trusted one another.
The disappearance of Elizabeth Olton shocked residents because it happened in a place where people believed children were safe.
The crime would forever change the community.
CHAPTER 2 – WHO WAS ELIZABETH OLTON?
Elizabeth Olton was nine years old.
She was known as:
Friendly
Playful
A normal young girl growing up in a close neighborhood
On October 21, 2009, she was simply doing something ordinary:
Visiting a friend.
She had no reason to believe she was walking into danger.
CHAPTER 3 – THE PLAYDATE WITH EMMA BAMANTE
Elizabeth lived only several houses away from the Bamante family.
The families knew each other.
Elizabeth occasionally visited to play with Emma Bamante.
Emma’s older sister was Alyssa Bamante.
At the time:
Emma was nine.
Alyssa was 15.
The families had no reason to suspect anything unusual.
CHAPTER 4 – THE AFTERNOON ELIZABETH DISAPPEARED
On Wednesday, October 21, Elizabeth walked to the Bamante home.
Earlier that day, Alyssa had asked permission to visit Elizabeth.
The family initially said no because they had plans.
Later, Alyssa and Emma were allowed to go outside.
They told the family they would walk in the wooded area behind the home.
The area contained approximately 60 acres of forest.
It was a place where children had explored before.
CHAPTER 5 – THE MOMENT EVERYTHING CHANGED
That afternoon, Alyssa returned home.
Her grandmother remembered hearing the front door open.
Alyssa ran upstairs quickly.
The behavior was unusual.
Later, around 6:30 p.m., Elizabeth’s brother came to the house.
He asked:
“Where is Elizabeth?”
The family was confused.
They believed Elizabeth had already gone home.
But she had not.
CHAPTER 6 – THE CALL TO POLICE
Elizabeth’s mother immediately contacted authorities.
The report:
A nine-year-old child was missing.
The first priority was finding Elizabeth alive.
At approximately 7:00 p.m., law enforcement began responding.
CHAPTER 7 – THE SEARCH BEGINS
The search started under terrible conditions.
Investigators faced:
Darkness
Heavy rain
Strong winds
Difficult terrain
Search teams entered:
Woods
Fields
Farm areas
Around 300 people joined the effort.
Neighbors, volunteers, and emergency personnel searched through the night.
CHAPTER 8 – THE FEAR OF A KIDNAPPING
At first, investigators considered multiple possibilities.
Elizabeth could have:
Become lost
Fallen somewhere
Been injured
Been taken by someone
The possibility that she had been kidnapped remained a major concern.
The most urgent question:
Where was Elizabeth?
CHAPTER 9 – THE CELL PHONE CLUE
Elizabeth had a cell phone.
In 2009, phone location technology was not as advanced as today.
Investigators could identify a general area.
But they could not pinpoint the exact location.
They continued tracking the phone.
Eventually:
The battery died.
The signal disappeared.
CHAPTER 10 – THE SECOND DAY SEARCH
The following day, investigators partnered with the Missouri State Highway Patrol.
Authorities:
Set up checkpoints
Questioned drivers
Expanded the search area
The investigation became a race against time.
CHAPTER 11 – ALYSSA BUSTAMANTE BECOMES A FOCUS
As investigators reviewed the timeline, attention shifted toward the last known person with Elizabeth.
Alyssa Bustamante.
The 15-year-old teenager told investigators that Elizabeth left and walked home.
But detectives began examining inconsistencies.
CHAPTER 12 – THE SEARCH OF ALYSSA’S ROOM
The FBI evidence recovery team searched Alyssa’s bedroom.
What they found shocked investigators.
Instead of ordinary teenage belongings, they discovered disturbing writings.
The room contained material that suggested:
A fascination with violence
Dark thoughts
Disturbing imagery
CHAPTER 13 – THE DIARY ENTRY THAT CHANGED EVERYTHING
Investigators found Alyssa’s journal.
Inside was an entry describing a murder.
The writing included statements about:
Killing someone
Strangling them
Cutting their throat
Feeling strange emotions afterward
For detectives, this was no longer just suspicion.
It appeared to be a written confession.
CHAPTER 14 – WHO WAS ALYSSA BUSTAMANTE?
Before the crime, Alyssa appeared to many people as a normal teenager.
She was:
Intelligent
Active
Successful in school
She participated in:
Gifted programs
School activities
Community events
She helped younger students.
Teachers recognized her abilities.
CHAPTER 15 – THE CHILDHOOD BEHIND THE TEENAGER
Alyssa’s grandparents later described a difficult childhood.
She experienced instability.
Her biological mother struggled with addiction.
At one point, Alyssa and her siblings were removed from her mother’s care.
Her grandparents became guardians.
They provided:
Stability
Education
A permanent home
They believed Alyssa was finally doing well.
CHAPTER 16 – THE HIDDEN STRUGGLES
Although Alyssa appeared successful, her family noticed emotional struggles.
They described:
Dark moods
Emotional withdrawal
Difficulty processing pain
After a serious mental health crisis, Alyssa received counseling.
She was prescribed medication.
CHAPTER 17 – THE INTERVIEW WITH ALYSSA
When investigators interviewed Alyssa, she appeared calm.
She answered questions.
She discussed her day.
She denied harming Elizabeth.
She suggested:
Maybe Elizabeth had been kidnapped.
But detectives continued questioning her.
CHAPTER 18 – THE HOLE IN THE WOODS
One of the biggest pieces of evidence involved a hole investigators discovered.
It was unusual.
The hole was:
Rectangular
Approximately child-sized
Similar to the shape of a small grave
Investigators questioned why Alyssa had dug it.
CHAPTER 19 – THE CONFESSION BEGINS
During questioning, detectives confronted Alyssa with the evidence.
They told her:
They had read her diary.
They knew something had happened.
Eventually, Alyssa admitted:
“It was an accident.”
But investigators believed the story did not match the evidence.
CHAPTER 20 – THE CHANGING STORY
Alyssa’s explanation changed several times.
She initially claimed:
Elizabeth fell.
She died.
She burned the body.
Later, she admitted more details.
CHAPTER 21 – THE FINAL CONFESSION
Alyssa eventually admitted:
She took Elizabeth into the woods
She strangled her
She cut her throat afterward
She buried her body
She admitted bringing a knife.
She admitted the hole had been connected to hiding Elizabeth.
CHAPTER 22 – RECOVERING ELIZABETH’S BODY
After the confession, Alyssa helped investigators locate the remains.
Elizabeth was found in a shallow grave.
The location was covered with:
Leaves
Debris
The discovery finally gave Elizabeth’s family answers.
CHAPTER 23 – THE AUTOPSY FINDINGS
The medical examination revealed:
Strangulation injuries
Neck wounds
Stab injuries
The violence indicated a deliberate attack.
Investigators concluded Elizabeth had suffered a violent death.
CHAPTER 24 – THE MOTIVE QUESTION
One of the hardest questions remained:
Why?
Investigators struggled to understand what caused a teenager to kill a child.
The case did not involve an obvious conflict.
Elizabeth had simply been a friend.
CHAPTER 25 – THE ADULT TRIAL DECISION
Because of the severity of the crime, prosecutors sought to try Alyssa as an adult.
The argument:
The brutality of the murder required adult accountability.
CHAPTER 26 – THE PLEA AGREEMENT
Alyssa eventually pleaded guilty.
She admitted:
Second-degree murder
Armed criminal action
The agreement removed the possibility of the death penalty.
CHAPTER 27 – THE SENTENCE
In 2012, Alyssa Bustamante was sentenced.
The sentence:
Life imprisonment with the possibility of parole, plus 30 years
Her future parole eligibility became a major issue for Elizabeth’s family.
CHAPTER 28 – THE IMPACT ON ELIZABETH’S FAMILY
Elizabeth’s family described the loss as permanent.
They fought against early release opportunities.
For them, the crime was not just a legal case.
It was the loss of a child.
A daughter.
A sister.
CHAPTER 29 – THE PAROLE BATTLE
Years later, Alyssa’s possible parole remained controversial.
In 2024, a parole hearing reopened painful memories.
Elizabeth’s family opposed release.
The parole board denied early release.
CHAPTER 30 – THE LAW CHANGE
Missouri later changed juvenile sentencing rules.
The changes affected how certain juvenile offenders could seek release.
For Alyssa, the changes pushed possible release much farther into the future.
FINAL NOTE – DETECTIVE BRIAN COLDWEL
The Elizabeth Olton case remains one of the most heartbreaking investigations in Missouri history.
It began with something innocent:
A child walking to a friend’s house.
It ended with a community asking impossible questions.
How could this happen?
Why did it happen?
Could anyone have seen the warning signs?
The case also showed the complexity of juvenile crime.
Alyssa Bustamante was responsible for a devastating act.
But investigators and experts also examined the environment, trauma, and struggles that shaped her life.
Two truths existed at the same time:
Elizabeth Olton was a nine-year-old child whose life was taken.
And Alyssa Bustamante was a teenager whose choices changed countless lives forever.
The investigation solved the mystery of Elizabeth’s disappearance.
But the pain left behind never disappeared.
CASE STATUS: CLOSED – CONVICTION OBTAINED
DEFENDANT: ALYSSA BUSTAMANTE
VICTIM: ELIZABETH OLTON, AGE 9
CONVICTIONS: SECOND-DEGREE MURDER / ARMED CRIMINAL ACTION
SENTENCE: LIFE WITH POSSIBILITY OF PAROLE + 30 YEARS
