The Murder of Jessica Ridgeway
Jessica Ridgeway
| Full Name | Jessica Ridgeway |
| Date of Birth | January 23, 2002 |
| Date of Death | October 5, 2012 |
| Age at Death | 10 years old |
| Hometown | Westminster, Colorado |
| School | Witt Elementary School |
| Mother | Sarah Ridgeway |
| Father | Jeremiah Bryant |
| Cause of Death | Asphyxiation — Strangulation |
Jessica Ridgeway was born on January 23, 2002, in Westminster, Colorado, to Sarah Ridgeway and Jeremiah Bryant. Her parents later separated, and Jessica lived with her mother, grandmother, and aunt in a quiet neighborhood in Westminster's western suburbs. Her father, Jeremiah Bryant, lived in Independence, Missouri. Despite the distance, Jessica remained close to both sides of her family.
Jessica was a fifth-grader at Witt Elementary School, where she was known for her perfect attendance, her intelligence, and her respectful nature. She was a member of a peewee cheerleading squad that practiced at nearby Standley Lake High School, and she loved wearing green and blue makeup for performances. Her favorite color was purple, and at the time of her disappearance she was excitedly planning to dress as a zombie lifeguard for Halloween.
She had blonde hair, blue eyes, and a gap between her two front teeth that those who knew her remembered clearly. She loved writing song lyrics, playing in the snow, catching snowflakes, and caring for her black-and-white dog. She had two fish and two frogs, and she loved Disney films. Family described her as so independent she seemed ten going on twenty — responsible, self-sufficient, and full of life.
Jessica was a fixture of her neighborhood and the Chelsea Park area where she and her friends gathered each morning to walk to school together. On the morning of October 5, 2012, she left home to meet those friends. She never arrived. She was ten years old.
What We Know
On the morning of October 5, 2012, ten-year-old Jessica Ridgeway left her home on Moore Street in Westminster, Colorado, at approximately 8:35 a.m. She was walking to Chelsea Park, three blocks away, where she was to meet friends before the one-mile walk to Witt Elementary School. It was snowing lightly. She never reached the park, and she never arrived at school. When Witt Elementary called to report her absence, the call went to voicemail; Jessica's mother, Sarah Ridgeway, worked overnight shifts and was asleep. Sarah did not receive the message until approximately 4:30 p.m. She immediately contacted Westminster Police.
An Amber Alert was issued that evening, though authorities noted it took approximately five hours before the required protocols were met to authorize it. By the following morning, more than 800 volunteers had assembled to search the area. Westminster Police, the FBI, the Jefferson County Sheriff's Office, and the Colorado Bureau of Investigation all participated. Dive teams searched Ketner Reservoir. Bloodhounds and helicopters covered surrounding open space. Over 500 DNA samples were collected and submitted for analysis.
On October 7, two days after Jessica's disappearance, her school backpack was discovered on a sidewalk in Superior, Colorado, approximately six miles from her home and in the opposite direction from her school. Inside the backpack were her glasses, which she needed to see, and the shoes she had been wearing the morning she disappeared. Her soiled clothing had also been placed inside. Investigators later confirmed the backpack had been deliberately placed there to divert attention away from the suspect's home.
On October 10, around 6:40 p.m., Westminster Police announced via Twitter that human remains had been discovered near Pattridge Park Open Space in Arvada, approximately nine miles from Jessica's home. Investigators initially declined to confirm the identity, noting publicly that the body was not intact. On October 12, the remains were confirmed to be Jessica's. Her torso had been found in two black plastic bags along 82nd Street; her head, limbs, and most internal organs were not present.
On October 19, a neighbor contacted authorities to report that a teenage boy in the area had a known fascination with death and decaying bodies, and that a wooden cross recently released in evidence photographs appeared to belong to him. FBI agents visited the home of seventeen-year-old Austin Reed Sigg on October 17 and again in the days that followed, speaking with his mother Mindy but conducting no search at that time.
On the evening of October 23, Mindy Sigg called the Westminster Police tip line and was transferred to dispatch. In a recorded call she stated that her son had confessed to killing Jessica Ridgeway and that Jessica's remains were inside their home. Officers arrived within approximately eighteen minutes. Austin Sigg was taken into custody and provided a full six-hour confession. Remaining portions of Jessica's body, including her skull, were recovered from a crawl space beneath the home. Sigg was seventeen years old at the time of the murder.
How It Unfolded
The Investigation
The investigation into Jessica's disappearance was led by the Westminster Police Department with support from the FBI, the Jefferson County Sheriff's Office, and the Colorado Bureau of Investigation. In the days following her disappearance, investigators collected over 500 DNA samples from individuals in the area and submitted them to the CBI for analysis. Properties were searched, GPS tracking technology was deployed, and hundreds of interviews were conducted. Officers guarded school crosswalks and photographed vehicles in the neighborhood while the community search continued.
A critical breakthrough came on October 19 when a neighbor recognized a wooden cross — released in evidence photographs — as one frequently worn by Austin Sigg, a seventeen-year-old who lived approximately one mile from Jessica's home and who had a known fixation with death and decaying bodies. FBI agents had already visited the Sigg residence on October 17 and spoken with Sigg's mother Mindy but did not conduct a search at that time. Following the tip, agents returned and obtained a voluntary DNA sample from Sigg, which was submitted to the CBI.
On October 23, before the DNA results were returned, Mindy Sigg called police herself. Sigg's confession was detailed and specific, covering the abduction route, the layout of his bedroom, the methods used to kill Jessica, and the locations where her remains had been placed. Investigators confirmed each element as Sigg described it. During the six-hour interview, Sigg also admitted to the May 28, 2012 attempted abduction at Ketner Lake, at which point investigators were able to connect his DNA profile to the sample already in the CODIS database from that earlier attack.
Forensic examination of Sigg's electronics revealed extensive child pornography, which Sigg's mother had first discovered on his computer in 2008 when he was twelve years old. He had been taken to Christian counseling at that time, which proved ineffective. Court records established that by the time of the murder, Sigg had progressed to viewing increasingly violent material including scenes of dismemberment, sexual bondage, and rape. He was enrolled at Arapahoe Community College at the time of the murder and was studying mortuary science. Investigators also found internet search history showing Sigg had researched chloroform recipes and had searched for the top ten locations where people are abducted.
A prosecution psychologist, Dr. Anna Salter, testified at sentencing that Sigg did not display the typical markers of adolescent impulsive crime; rather, the attack had been methodically planned. She described him as sadistic and stated he appeared to have been sexually aroused by the dismemberment. Defense counsel argued that prenatal trauma, his mother's exposure to paint fumes during pregnancy, and resulting physical deformities were mitigating factors, and that as a juvenile he was constitutionally entitled to a sentence with the possibility of parole. Judge Munsinger rejected all mitigating arguments.
Recording of Mindy Sigg's 911 Call to Westminster Police — October 23, 2012 (YouTube)
The Accused
Evidence and Method
Zip ties were used to bind Jessica's wrists and ankles during the abduction. Sigg's DNA was recovered from Jessica's clothing. A wooden cross found with her remains was identified by a neighbor as one frequently worn by Sigg, providing the tip that first directed investigators to him. Jessica's soiled clothing, her glasses, and her shoes were found inside her backpack, which Sigg had deliberately placed in Superior to redirect the search.
Remaining portions of Jessica's body, including her skull, were recovered from black plastic bags in the crawl space beneath the Sigg home during the search conducted the night of his arrest.
A DNA profile was recovered from the shirt of the Ketner Lake jogger following the May 28, 2012 attempted abduction and entered into the FBI's CODIS database. At the time, no match was returned. When Sigg's voluntary DNA sample was submitted following the neighbor's tip on October 19, 2012, it matched the CODIS profile from the May attack, directly linking him to both crimes.
DNA recovered from Jessica's clothing further confirmed Sigg's contact with the victim and was consistent with his full confession.
Sigg first attempted to strangle Jessica with zip ties but stated he could not gain sufficient leverage. He then used his hands, strangling her for approximately three minutes. When she remained alive, he submerged her face in a bathtub filled with scalding water and held her there until she died. The medical examiner determined cause of death as asphyxiation.
Sigg's account was consistent across both his initial confession and subsequent court proceedings. The prosecution psychologist described the killing as methodical and sadistic rather than impulsive.
Using a hacksaw and knife, Sigg dismembered Jessica's body in the bathtub. He discarded most of her internal organs and temporarily stored her remains in black plastic bags in a pool shed, before moving them to the crawl space beneath the home. He deliberately placed a wooden cross inside her body.
He transported her torso nine miles to Pattridge Park Open Space in Arvada and left it in black bags along 82nd Street, intending it to be discovered and draw investigators away from his neighborhood. Court testimony established that Sigg was sexually aroused by the dismemberment.
Forensic examination of Sigg's electronics revealed extensive child pornography, which his mother had first discovered when he was twelve years old in 2008. Treatment at that time was ineffective. By the time of the murder, court records established that Sigg had progressed to viewing increasingly violent material including scenes of dismemberment, sexual bondage, and rape.
His internet search history showed he had researched recipes for chloroform and had searched for the top ten locations where people are most commonly abducted. Prosecutors argued this demonstrated deliberate, advance planning.
Sigg had no prior criminal record at the time of the murder. He had dropped out of high school after 11th grade, earned a GED, and enrolled at Arapahoe Community College where he was studying mortuary science. Former classmates described him as intelligent but socially isolated, and he had been bullied for having a high voice.
His father was a media executive. His parents had separated when he was young. Defense counsel cited prenatal trauma and physical deformities resulting from his mother's exposure to paint fumes during pregnancy as mitigating factors; the court rejected all mitigation arguments at sentencing.
She Is Not Forgotten
Jessica Ridgeway was ten years old and she was catching snowflakes on her way to school. She loved purple. She had a gap in her front teeth and a dog she took care of without being asked. She was a cheerleader and a songwriter and a girl who made the people around her feel like the day was a little better for her being in it. She was ten years old and she was walking three blocks to meet her friends, the way she always did.
Her mother Sarah did not get to say goodbye that morning. She was asleep when Jessica left, working the overnight shift the way she had to, trusting in the ordinary safety of a quiet neighborhood in the western suburbs of Denver. That trust was not foolish. It was reasonable. It was the trust every parent extends every day, and it was taken from her in the cruelest way imaginable.
What endures is Jessica. The park near her home on Moore Street was dedicated in her name on the one-year anniversary of her disappearance. It was painted purple, her color. Children play there now, and families gather there, and the community that rallied around the Ridgeways in October 2012 did not stop. It built something lasting in her name and it keeps building it.
Sarah Ridgeway stood in a courtroom in November 2013 and told the judge that her family would walk out and never say his name again. They would remember only Jessica, and the legacy she created. That is exactly what has happened. His name fades. Hers does not. Jessica Ridgeway was here. She is not forgotten.