On May 31, 2022, 11-year-old Ayzy Hernandez-Landa was shot and killed in her home on Godfrey Avenue SW in Wyoming, Michigan, by Oscar Moran-Hernandez, 43, the boyfriend of her mother Liliana Landa-Sanchez. Moran-Hernandez also killed Ayzy's 13-year-old sister Joelin Hernandez-Landa and their mother before turning the gun on himself in what police described as a triple murder-suicide. Ayzy and Joelin were Landa-Sanchez's children from a previous relationship. Three younger children (ages 9, 5, and 2), at least two of whom were Moran-Hernandez's biological children, were in the home but were not physically harmed. Landa-Sanchez's sister reported that the mother was afraid of Moran-Hernandez and that he would humiliate and mistreat her constantly. Wyoming DPS Chief Kim Koster described the incident as a devastating example of domestic violence.
Contexts/Conditions
Is there any mention of child drug ingestion or overdose?
Is there any mention of a drowning incident (either intentional or accidental)?
Is there any mention of a firearm incident?
The medical examiner report states the cause of death was "Gunshot wound to head." The WOOD TV article describes the incident: "killed his girlfriend and two of her children before turning the gun on himself" and quotes the guest Santos Avalos saying "When we heard those gunshots, my family got scared and we ran outside."
Is there any mention of inappropriate supervision (e.g., child wandered off and drowned)?
Is there any mention of inflicted injury? (e.g. slapped, punched, kicked, choked)
The medical examiner report (MI_22_4089.pdf) states the immediate cause of death was "Gunshot wound to head" and the description of injury reads "Decreased shot by another individual" (likely OCR for "Deceased shot by another individual"). This constitutes an inflicted injury.
Is there any mention of malnutrition, starvation, or dehydration?
Is there any mention of medical neglect?
Is there any mention of a motor vehicle crash or incident?
Is there any mention of a murder-suicide incident?
The WOOD TV article explicitly describes the incident as "The apparent triple murder-suicide" and states Oscar Moran-Hernandez "killed his girlfriend and two of her children before turning the gun on himself."
Is there any mention of outdoor elements (including hot car deaths)?
Is there any mention of prenatal substance exposure (including fetal alcohol syndrome or neonatal abstinence syndrome)?
Is there any mention of sexual abuse?
Is there any specific mention of shaken baby or abusive head trauma?
Is there any mention of prolonged abuse or torture (including restraints, captivity)?
Is there any mention of an unsafe sleeping environment?
Individuals Involved
Was an adoptive parent or guardian involved in the death?
Was a biological father involved in the death?
Was a biological mother involved in the death?
Was a day care worker, babysitter, or nanny involved in the death?
Was a female paramour or friend involved in the death (e.g., girlfriend, stepmother)?
Was a foster parent involved in the death?
Was a male paramour or friend involved in the death (e.g., boyfriend, stepfather)?
The WOOD TV article identifies the perpetrator as Oscar Moran-Hernandez, 43, who was the boyfriend of Ayzy's mother Liliana Landa-Sanchez. It further clarifies that "Joelin and Ayzy were Landa-Sanchez's children from a previous relationship," making Moran-Hernandez a male paramour (boyfriend/stepfather figure), not the biological father.
Was another adult relative involved in the death? (e.g., grandfather, aunt)
Was a sibling involved in the death?
Child Characteristics
Was the child adopted?
Was the child homeschooled (including "cyberschooling") or taken out of school?
Was the child in foster care at the time of the incident?
Was the child living with relatives at the time of the incident (but not parents)?
Is there any mention of a neurological developmental child disability? (e.g., autism, intellectual disability, nonverbal)
Is there any mention of a physical child disability? (e.g., feeding tube)
Is there any mention of prematurity or low birthweight?
Is there a history of child protection reports prior to death (for this child or siblings)?
Does the child have a history of foster care (but not in care at time of incident)?
Is there a history of a sibling death (separate incident from this death)?
Parent/Caregiver Factors
Was an adult charged or arrested for the child's death?
Is domestic violence by the parent/caregiver referenced?
The WOOD TV article explicitly references domestic violence. Landa-Sanchez's sister stated via Facebook Messenger: "I believe she was afraid of him… He would humiliate and mistreat her constantly." Wyoming DPS Chief Kim Koster called this "a devastating example of domestic violence." The article also notes "Wyoming has seen a total of six homicides this year and all were related to domestic situations."
Is there any mention that the death occurred in a temporary shelter or while homeless?
Is an intellectual disability of the parent/caregiver referenced?
Is the mental health of the parent/caregiver referenced?
Is a history of arrests or criminal charges for the parent/caregiver referenced?
The WOOD TV article states: "Wyoming police previously said he was accused of drunken driving in 2003." This accusation predates the 2022 fatal incident and constitutes a prior criminal history reference for the perpetrator/caregiver.
Is substance use by the parent/caregiver referenced?
The WOOD TV article states that Oscar Moran-Hernandez "was accused of drunken driving in 2003," which references alcohol use by the caregiver. While this is framed as a criminal history item, it implies past substance (alcohol) use by the mother's boyfriend who lived in the home with the children.
Notable Details
Several notable details emerge from the text. First, three other children (ages 9, 5, and 2) were in the home during the shooting but were not harmed; the WOOD TV article notes that "at least two of those children belonged both Landa-Sanchez and Moran-Hernandez," while the two girls killed (Joelin and Ayzy) "were Landa-Sanchez's children from a previous relationship" — suggesting the perpetrator selectively targeted his girlfriend's children from a prior relationship while sparing his own biological children. Second, a guest family from Maryland was sleeping in another room during the shooting: Santos Avalos said, "When we heard those gunshots, my family got scared and we ran outside." Third, the WOOD TV article reports a broader systemic trend: Wyoming DPS had seen "a total of six homicides this year and all were related to domestic situations," and a YWCA representative noted domestic violence increases of "25% to 35%" since the COVID pandemic that had not leveled off. Finally, a GoFundMe was created to transport the victims' bodies to Mexico for burial.
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