Amanda Marissa McCauley, a 42-year-old resident of Sioux City, Iowa, died on Saturday, September 26, 2026, in a shooting at a home on Douglas Street. Sioux City police later identified her as one of three people who died at the scene.
The shooting has drawn attention across the Siouxland community because of the deaths of Amanda, her husband Andrew McCauley, and her mother, Yolanda Guerra Koon. Police say their preliminary investigation determined that Andrew McCauley fatally shot Amanda and Yolanda before dying from a self-inflicted gunshot wound as officers arrived.
Background: Who Was Amanda McCauley?
Amanda McCauley was a 42-year-old woman from Sioux City, Iowa. The funeral home’s obituary identifies her more fully as Amanda Marissa McCauley and records her date of birth as November 5, 1983.
Her death was reported following the fatal shooting at a residence at 3110 Douglas Street in Sioux City. According to police, officers were dispatched to the location at approximately 8:15 a.m. on September 26 after a report of a shooting.
When officers arrived, they found three people suffering from fatal gunshot wounds. Police later identified the victims as Amanda McCauley, her 76-year-old mother Yolanda Guerra Koon, and Andrew McCauley, also 42.
Latest Update: September 30, 2026
As of September 30, 2026, Amanda McCauley’s death has been confirmed by both law enforcement reporting and her funeral-home obituary. Sioux City police continue to investigate the circumstances surrounding the shooting.
Police said their preliminary investigation found that Andrew McCauley shot and killed his wife, Amanda, and his mother-in-law, Yolanda Guerra Koon. Police said Andrew then died from a self-inflicted gunshot wound as officers were arriving at the residence.
Authorities have not announced a broader motive for the shooting in the information currently available. Because the investigation remains ongoing, additional details could be released later.
Important: The police account describes the findings of a preliminary investigation. Details can change as investigators complete their work, and this article does not speculate about a motive that authorities have not publicly established.
What Happened in the Douglas Street Shooting?
The incident occurred Saturday morning, September 26, at a residence on the 3100 block of Douglas Street in Sioux City. Police were called to the home at about 8:15 a.m.
Officers found three people with fatal gunshot wounds. The victims were subsequently identified as Amanda McCauley, Yolanda Guerra Koon and Andrew McCauley.
Sioux City police said the preliminary investigation determined that Andrew McCauley was responsible for the deaths of Amanda and Yolanda. Police said he then died from a self-inflicted gunshot wound as officers arrived.
The police account means the case is being investigated as a shooting involving people who were known to one another rather than an unidentified attacker entering the neighborhood. However, investigators have not publicly provided every detail surrounding what happened inside the residence before police arrived.
Amanda McCauley’s Death and Cause of Death
Amanda McCauley died from a gunshot wound sustained during the Douglas Street shooting, according to the police account of the incident. Police identified all three victims as having suffered fatal gunshot wounds.
The available public reports do not provide additional medical details about Amanda’s injuries, and there is no need to add details that have not been released by authorities.
The cause of death should therefore be understood in the context of the police investigation: Amanda was fatally shot at the Douglas Street residence on September 26, 2026.
Amanda McCauley and Her Family
Police identified Andrew McCauley as Amanda’s husband and Yolanda Guerra Koon as Amanda’s mother. All three were Sioux City residents, according to police reporting.
The deaths therefore affected the same immediate family. Amanda was 42, Andrew was also 42, and Yolanda was 76.
The public obituary confirms Amanda’s identity as Amanda Marissa McCauley and provides information about her funeral arrangements. More personal information about her family life, employment and background has not been extensively detailed in the sources currently available.
Amanda Marissa McCauley Age and Birth Information
Amanda McCauley was 42 years old when she died. Her funeral-home obituary lists her birth date as November 5, 1983, and her death date as September 26, 2026.
That information is consistent with the age given by Sioux City police when they identified her as one of the victims.
Funeral and Memorial Services
Funeral arrangements for Amanda McCauley have been announced by Meyer Brothers Funeral Homes.
A visitation is scheduled for Sunday, October 4, 2026, from 2:00 p.m. to 8:00 p.m. at Mohr & Becker-Hunt Funeral Home, located at 1431 W. 29th Street in South Sioux City, Nebraska. A rosary is scheduled for 5:00 p.m. during the visitation.
A Funeral Mass is scheduled for Monday, October 5, 2026, at 10:30 a.m. at St. Michael’s Catholic Church, 1405 1st Avenue in South Sioux City.
Burial is scheduled to take place at St. Michael’s Cemetery in South Sioux City.
These arrangements are based on the funeral home’s published obituary and may be subject to change if the family or funeral home issues an updated notice.
What Police Have Said About the Investigation
Sioux City police have said the investigation remains ongoing. Officers were initially called to the residence after a report of a shooting from inside the home.
The preliminary investigation later provided authorities with a sequence of events involving Andrew, Amanda and Yolanda. Police said Andrew shot his wife and mother-in-law and then died from a self-inflicted gunshot wound as officers were arriving.
At this stage, authorities have not publicly established a motive in the reports reviewed for this article. That distinction is important because speculation about why the shooting occurred could create an inaccurate picture of the case.
Community Reaction
The shooting has affected residents in the surrounding Siouxland community. A neighbor interviewed by KTIV described the incident as unusual for the area and spoke about the importance of neighbors supporting one another after a serious event.
The Douglas Street location is a few blocks from Grandview Park. The shooting brought police and emergency personnel to the residential area during the Saturday morning incident.
As investigators continue their work, the focus remains on establishing the full circumstances surrounding the deaths and documenting what happened before officers arrived.
Quick Table: Amanda McCauley Obituary
| Detail | Information |
|---|---|
| Full name | Amanda Marissa McCauley |
| Age | 42 |
| Born | November 5, 1983 |
| Died | September 26, 2026 |
| Residence | Sioux City, Iowa |
| Cause of death | Fatal gunshot wound in the Douglas Street shooting |
| Husband | Andrew McCauley |
| Mother | Yolanda Guerra Koon |
| Location of shooting | 3110 Douglas Street, Sioux City |
| Visitation | October 4, 2026, 2:00 p.m. to 8:00 p.m. |
| Funeral Mass | October 5, 2026, at 10:30 a.m. |
| Burial | St. Michael’s Cemetery, South Sioux City |
Reader Questions
Who was Amanda McCauley?
Amanda Marissa McCauley was a 42-year-old woman from Sioux City, Iowa. She died on September 26, 2026, in a shooting at a Douglas Street residence.
How did Amanda McCauley die?
Sioux City police said Amanda McCauley was fatally shot. Police identified her as one of three people who died in the September 26 shooting.
When did Amanda McCauley die?
Amanda McCauley died on Saturday, September 26, 2026. Her funeral-home obituary confirms that date.
Who else died in the Douglas Street shooting?
Police identified the other two deceased people as Amanda’s mother, 76-year-old Yolanda Guerra Koon, and Amanda’s husband, 42-year-old Andrew McCauley. Police said Andrew fatally shot Amanda and Yolanda before dying from a self-inflicted gunshot wound.
What happened to Amanda McCauley’s husband?
Police identified Amanda’s husband as Andrew McCauley. Investigators said Andrew shot Amanda and Yolanda before dying from a self-inflicted gunshot wound as officers arrived.
When is Amanda McCauley’s funeral?
A Funeral Mass is scheduled for 10:30 a.m. Monday, October 5, 2026, at St. Michael’s Catholic Church in South Sioux City. Burial is scheduled at St. Michael’s Cemetery.
Where is Amanda McCauley’s visitation being held?
The visitation is scheduled for Sunday, October 4, from 2:00 p.m. to 8:00 p.m. at Mohr & Becker-Hunt Funeral Home in South Sioux City. A rosary is scheduled for 5:00 p.m.
Is the investigation into Amanda McCauley’s death finished?
No. Sioux City police have said the investigation remains ongoing. The account released by police is based on their preliminary investigation.
Was a motive announced in the Douglas Street shooting?
No confirmed motive was included in the police information reviewed for this report. Claims about a motive should not be treated as established unless investigators or another reliable source publicly confirms them.
Wrap-Up
Amanda Marissa McCauley was 42 when her life ended in the Douglas Street shooting in Sioux City on September 26, 2026. Police later identified her as one of three people who died at the residence, alongside her mother, Yolanda Guerra Koon, and her husband, Andrew McCauley.
Her death has now been formally recorded in an obituary, and funeral arrangements have been announced for October 4 and 5. The family and community will have an opportunity to remember Amanda during the scheduled visitation, rosary and Funeral Mass.
Meanwhile, Sioux City police continue to investigate the circumstances surrounding the shooting. Until authorities release additional information, the confirmed facts remain the safest basis for understanding what happened and remembering Amanda McCauley.
Disclaimer
This obituary and news report is based on publicly available funeral-home information and reporting from law enforcement and local news organizations. Details concerning an active investigation may change as authorities release additional information. No unverified claims about motive, family circumstances or other personal matters should be treated as established fact.
